NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

STATEMENT OF FAIR PRESENTATION

Interim Financial Statements . The accompanying interim unaudited condensed consolidated financial statements of Technical Communications Corporation (the “Company” or “TCC”) and its wholly-owned subsidiary include all adjustments which are, in the opinion of management, necessary for a fair presentation of the financial position and results of operations for the periods presented and in order to make the financial statements not misleading. All such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of the results to be expected for the fiscal year ending September 28, 2013.

Certain footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted as allowed by Securities and Exchange Commission (“SEC”) rules and regulations. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and the notes thereto in the Company’s Quarterly Reports on Form 10-Q for the quarters ended March 30, 2013 and December 29, 2012 and its Annual Report on Form 10-K for the fiscal year ended September 29, 2012 as filed with the SEC.

We follow accounting standards set by the Financial Accounting Standards Board, commonly referred to as the FASB. The FASB sets generally accepted accounting principles (“GAAP”) that we follow to ensure we consistently report our financial condition, results of operations, and cash flows. References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification ^TM - sometimes referred to as the Codification or ASC.

Basis of Presentation . The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary. All significant intercompany accounts and transactions have been eliminated in consolidation.

The discussion and analysis of our financial condition and results of operations are based on our condensed consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of these condensed consolidated financial statements requires management to make estimates and judgements that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported revenues and expenses during the reporting periods.

On an ongoing basis, management evaluates its estimates and judgments, including but not limited to those related to revenue recognition, inventory reserves, receivable reserves, investment securities, income taxes, fair value of financial instruments and share-based compensation. Management bases its estimates on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Cont’d)

The accounting policies that management believes are most critical to aid in fully understanding and evaluating our reported financial results include the following:

Revenue Recognition

Product revenue is recognized when there is persuasive evidence of an arrangement, the fee is fixed or determinable, delivery of the product to the customer has occurred and we have determined that collection of the fee is probable. Title to the product generally passes upon shipment of the product, as the products are shipped FOB shipping point, except for certain foreign shipments for which title passes upon entry of the product into the first port in the buyer’s country. If the product requires installation to be performed by TCC, all revenue related to the product is deferred and recognized upon completion of the installation. We provide for a warranty reserve at the time the product revenue is recognized.

We perform funded research and development and technology development for commercial companies and government agencies under both cost reimbursement and fixed-price contracts. Cost reimbursement contracts provide for the reimbursement of allowable costs and, in some situations, the payment of a fee. These contracts may contain incentive clauses providing for increases or decreases in the fee depending on how actual costs compare with a budget. Revenue from reimbursement contracts is recognized as services are performed. On fixed-price contracts that are expected to exceed one year in duration, revenue is recognized pursuant to the proportional performance method based upon the proportion of actual costs incurred to the total estimated costs for the contract. In each type of contract, we receive periodic progress payments or payments upon reaching interim milestones, and we retain the rights to the intellectual property developed in government contracts. All payments to TCC for work performed on contracts with agencies of the U.S. government are subject to audit and adjustment by the Defense Contract Audit Agency. Adjustments are recognized in the period made. When current estimates of total contract revenue and contract costs for a product development contract indicate a loss, a provision for the entire loss on the contract is recorded. Any losses incurred in performing funded research and development projects are recognized as funded research and development expenses.

Cost of product revenue includes material, labor and overhead. Costs incurred in connection with funded research and development are included in cost of sales. Product development costs are charged to billable engineering services, bid and proposal efforts or support of business development activities, as appropriate. Product development costs charged to billable projects are recorded as cost of sales, engineering costs charged to bid and proposal efforts are recorded as selling expenses, and product development costs charged to business development activities are recorded as marketing expenses. Product development costs consist primarily of personnel costs, outside contractor and engineering services, supplies and materials.

Inventory

We value our inventory at the lower of actual cost (based on first-in, first-out (FIFO)) to purchase and/or manufacture or the current estimated market value (based on the estimated selling prices, less the cost to sell) of the inventory. We periodically review inventory quantities on hand and record a provision for excess and/or obsolete inventory based primarily on our estimated forecast of product demand, as well as historical usage. Due to the custom and specific nature of certain of our products, demand and usage for products and materials can fluctuate significantly. A significant decrease in demand for our products could result in a short-term increase in the cost of inventory purchases and an increase in excess inventory quantities on hand. In addition, our industry is characterized by rapid technological change, frequent new product development and rapid product obsolescence, any of which could result in an increase in the amount of obsolete inventory quantities on hand. Therefore, although we make every effort to ensure the accuracy of our forecasts of future product demand, any significant unanticipated changes in demand or technological developments could have a significant negative impact on the value of our inventory and would reduce our reported operating results.

Accounts Receivable

Accounts receivable are reduced by an allowance for amounts that may become uncollectible in the future. The estimated allowance for uncollectible amounts is based primarily on a specific analysis of accounts in the receivable portfolio and historical write-off experience. While management believes the allowance to be adequate, if the financial condition of our customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required, which would reduce net income. The allowance recorded for accounts receivable at June 29, 2013 and September 29, 2012 was $25,000.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Cont’d)

Investment Securities

The Company accounts for investment securities in accordance with FASB ASC 320, Investments - Debt and Equity Securities. All investment securities must be classified as one of the following: held-to-maturity, available-for-sale, or trading. The Company holds certain marketable securities classified as available-for-sale and, as such, carries the investments at fair value, with unrealized holding gains and losses reported in stockholders’ equity as a separate component of accumulated other comprehensive income (loss). The cost of securities sold is determined based on the specific identification method. Realized gains and losses, and declines in value judged to be other than temporary, are included in investment income. The purchase discount or premium is amortized to income or expense, respectively, over the life of the securities.

Accounting for Income Taxes

The preparation of our consolidated financial statements requires us to estimate our income taxes in each of the jurisdictions in which we operate, including those outside the United States, which may subject the Company to certain risks that ordinarily would not be expected in the United States. The income tax accounting process involves estimating our actual current exposure together with assessing temporary differences resulting from differing treatments of items, such as deferred revenue, for tax and accounting purposes. These differences result in the recognition of deferred tax assets and liabilities. We must then record a valuation allowance to reduce our deferred tax assets to the amount that is more likely than not to be realized.

Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities, and any valuation allowance recorded against deferred tax assets. We have recorded a valuation allowance against our deferred tax assets of $1.1 million as of June 29, 2013 due to uncertainties related to our ability to utilize these assets. The valuation allowance is based on our estimates of taxable income by jurisdiction and the period over which our deferred tax assets will be recoverable. In the event that actual results differ from these estimates or we adjust these estimates in future periods, we may need to adjust our valuation allowance. Any such adjustment could materially impact our financial position and results of operation.

Due to the nature of our current operations in foreign countries (selling products into these countries with the assistance of local representatives), the Company has not been subject to any foreign taxes in recent years. Also, it is not anticipated that we will be subject to foreign taxes in the near future.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Cont’d)

Fair Value of Financial Instruments

In determining the fair value of financial instruments, the Company follows the provisions of FASB ASC 820, Fair Value Measurements and Disclosures . FASB ASC 820 defines fair value, establishes a framework for measuring fair value under GAAP and enhances disclosures about fair value measurements. The topic provides a consistent definition of fair value which focuses on an exit price, which is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The topic also prioritizes, within the measurement of fair value, the use of market-based information over entity specific information and establishes a three-level hierarchy for fair value measurements based on the nature of inputs used in the valuation of an asset or liability as of the measurement date. The three level hierarchy is as follows:

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment.

The Company’s available-for-sale securities are comprised of investments in municipal bonds, brokered certificates of deposit and mutual funds. These securities represent ownership in individual bonds in municipalities within the United States, certificates of deposit in U.S. banks and money market funds held in a brokerage account. The fair value of these investments is based on quoted prices from recognized pricing services (e.g. Standard & Poors, Bloomberg, etc.) or, in the case of mutual funds, at their closing net asset values.

The Company assesses the levels of the investments at each measurement date, and transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Company’s accounting policy regarding the recognition of transfers between levels of the fair value hierarchy. During the nine months ended June 29, 2013 there were no transfers between levels.

The following table sets forth by level, within the fair value hierarchy, the financial instruments carried at fair value as of June 29, 2013 and September 29, 2012, in accordance with the fair value hierarchy as defined above.

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Assets and liabilities measured at fair value on a nonrecurring basis are recognized at fair value subsequent to initial recognition when they are deemed to be impaired. As of June 29, 2013 and September 29, 2012, the Company’s assets and liabilities subject to measurement at fair value on a nonrecurring basis are equipment and leasehold improvements. Neither was deemed to be impaired or measured at fair value on a nonrecurring basis.

Short-Term Debt

The Company maintains a line of credit agreement with Bank of America (the “Bank”) for a line of credit not to exceed the principal amount of $600,000. The line is supported by a financing promissory note. The loan is a demand loan with interest payable at the Bank’s prime rate plus 1% on all outstanding balances. During the fiscal year ended September 29, 2012, the Company failed to comply with its tangible net worth covenant with respect to the line of credit. The Bank waived the violation and the parties amended the agreement on February 8, 2013 to lower the tangible net worth requirement. In addition, the line is now only available to support new letters of credit issued by the Company. Future standby letters of credit will be required to be secured with cash. The Company has no borrowings against this line of credit; however, there is an outstanding standby letter of credit which is secured by the line amounting to $14,903 at June 29, 2013.

Share-Based Compensation

Share-based compensation cost is measured at the grant date based on the calculated fair value of the award. The expense is recognized over the employee’s requisite service period, generally the vesting period of the award. The related excess tax benefit received upon the exercise of stock options, if any, is reflected in the Company’s statement of cash flows as a financing activity rather than an operating activity. There were no excess tax benefits for the three and nine month periods ended June 29, 2013 and June 23, 2012.

The Company selected the Black-Scholes option pricing model as the method for determining the estimated fair value of its stock awards. The Black-Scholes method of valuation requires several assumptions: (1) the expected term of the stock award, (2) the expected future stock price volatility over the expected term, (3) a risk-free interest rate and (4) the expected dividend rate. The expected term represents the expected period of time the Company believes the options will be outstanding based on historical information. Estimates of expected future stock price volatility are based on the historic volatility of the Company’s common stock and the risk free interest rate is based on the U.S. Treasury Note rate. The Company utilizes a forfeiture rate based on an analysis of its actual experience. The forfeiture rate is not material to the calculation of share-based compensation.

The fair value of options at date of grant was estimated with the following assumptions (unaudited):

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Cont’d)

There were 16,500 options granted during the nine months ended June 29, 2013, and 17,000 options granted during the nine months ended June 23, 2012. The weighted average grant date fair value for the options granted during such nine month periods was $2.89 and $4.47, respectively.

The following table summarizes share-based compensation costs included in the Company’s condensed consolidated income statements for the three and nine month periods ended June 29, 2013 and June 23, 2012 (unaudited):

As of June 29, 2013 and June 23, 2012, there was $328,683 and $521,669, respectively, of unrecognized compensation cost related to options granted. The unrecognized compensation cost will be recognized as the options vest. The weighted average period over which the compensation cost is expected to be recognized is 2.36 years and 3.2 years, respectively.

The Company had the following stock option plans outstanding as of June 29, 2013: the Technical Communications Corporation 2001 Stock Option Plan, the 2005 Non-Statutory Stock Option Plan and the 2010 Equity Incentive Plan. There were an aggregate of 750,000 shares authorized for issuance under these plans, of which options to purchase 257,582 shares were outstanding at June 29, 2013. Vesting periods are at the discretion of the Board of Directors and typically range between zero and five years. Options under these plans are granted with an exercise price equal to fair market value at time of grant and have a term of ten years from the date of grant.

As of June 29, 2013, there were no shares available for new option grants under the 2001 Stock Option Plan; there were 33,028 shares available for grant under the 2005 Non-Statutory Stock Option Plan; and there were 54,406 shares available for grant under the 2010 Equity Incentive Plan.

The following table summarizes stock option activity during the first nine months of fiscal 2013 (unaudited):

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The aggregate intrinsic value of the Company’s “in-the-money” outstanding and exercisable options as of June 29, 2013 and June 23, 2012 was $222,176 and $277,555, respectively. Unvested common stock options are subject to the risk of forfeiture until the fulfillment of specified conditions.

During the nine months ended June 29, 2013 and June 23, 2012, the Company recorded an income tax benefit based on its expected effective tax rate for its fiscal year. The effective tax rate for the first nine months of fiscal year 2013 was decreased to 48% from 57.7% in the second quarter of fiscal 2013 due to a revision of the full year pre-tax forecast in the third fiscal quarter of 2013 and the tax benefit recorded related to the research credit, which was extended on January 2, 2013 by the America Taxpayer Relief Act of 2012. The effective tax rate excluding discrete events for the nine months ended June 29, 2013 was 42.9%. This compares to 41.8% for the same period of fiscal 2012.

Deferred tax assets consist of tax credits, inventory differences and other temporary differences. The Company’s valuation allowance is related to the temporary differences associated with its inventory. The Company has determined that the tax benefit related to its obsolete inventory will not likely be realized, and therefore has provided a full valuation allowance against the related deferred tax asset. It is the Company’s intention to maintain the related inventory items for the foreseeable future to support equipment in the field, and therefore cannot determine when the tax benefit, if any, will be realized.

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Outstanding potentially dilutive stock options, which were not included in the earnings per share calculations because their inclusion would have been anti-dilutive, were 257,582 at June 29, 2013 and 268,852 at June 23, 2012.

During the quarter ended June 29, 2013, the Company had three customers that represented 86% (41%, 30% and 15%, respectively) of net sales as compared to the quarter ended June 23, 2012, during which three customers represented 83% (42%, 24%, and 17%, respectively) of net sales. During the nine month period ended June 29, 2013, the Company had two customers that represented 72% (41%, and 31%, respectively) of net sales as compared to the nine month period ended June 23, 2012, during which one customer represented 84% of net sales.

A breakdown of foreign and domestic net sales is as follows (unaudited):

The Company sold products into four countries during the three month period ended June 29, 2013 and five countries during the three month period ended June 23, 2012. The Company sold products into five countries during the nine month period ended June 29, 2013 and six countries during the nine month period ended June 23, 2012. A sale is attributed to a foreign country based on the location of the contracting party. Domestic revenue may include the sale of products shipped through domestic resellers or manufacturers to international destinations. The table below summarizes our foreign revenues by country as a percentage of total foreign revenue (unaudited).

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The Company considers all highly liquid instruments with an original maturity of three months or less to be cash equivalents. Substantially all cash equivalents are invested in money market mutual funds. Money market mutual funds held in a brokerage account are considered available-for-sale. The Company accounts for marketable securities in accordance with FASB ASC 320, Investments - Debt and Equity Securities. All marketable securities must be classified as one of the following: held-to-maturity, available-for-sale, or trading. The Company classifies its marketable securities as available-for-sale and, as such, carries the investments at fair value, with unrealized holding gains and losses reported in stockholders’ equity as a separate component of accumulated other comprehensive income (loss). The cost of securities sold is determined based on the specific identification method. Realized gains and losses, and declines in value judged to be other than temporary, are included in investment income. The purchase discount or premium is amortized to income or expense, respectively, over the life of the securities.

As of June 29, 2013, available-for-sale securities consisted of the following (unaudited):

The contractual maturities of these investments as of June 29, 2013 were as follows (unaudited):