Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Concentration of Credit Risk and Other Risks and Uncertainties

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. Cash and cash equivalents are deposited in demand and money market accounts at one financial institution. At times, such deposits may be in excess of insured limits. The Company has not experienced any losses on its deposits of cash and cash equivalents.

The Company’s accounts receivables are derived from revenue earned from customers located throughout the world. When necessary, the Company performs credit evaluations of its customers’ financial condition and sometimes requires partial payment in advance of shipping. As of September 30, 2020 and December 31, 2019, there was no allowance for doubtful accounts. As of September 30, 2020, the Company had two customers accounting for 79% and 14% of accounts receivable. As of December 31, 2019, the Company had three customers accounting for 37%, 28% and 20% of accounts receivable. The Company had four customers accounting for 30%,  18%,  15%  and 11% of its net revenue for the three months ended September 30, 2020. The Company had one customer accounting for 44% of its net revenue for the nine months ended September 30, 2020. The Company had three customers accounting for 56%, 20% and 17% of its net revenue for the three months ended September 30, 2019. The Company had three customers accounting for 54%, 28% and 11% of its net revenue for the nine months ended September 30, 2019.

The Company’s future results of operations involve a number of risks and uncertainties. Factors that could affect the Company’s future operating results and cause actual results to vary materially from expectations include, but are not limited to, rapid technological change, continued acceptance of the Company’s products, competition from substitute products and larger companies, protection of proprietary technology, strategic relationships and dependence on key individuals.

The Company relies on sole-source suppliers to manufacture some of the components used in its product. The Company’s manufacturers and suppliers may encounter problems during manufacturing due to a variety of reasons, any of which could delay or impede their ability to meet demand. The Company is heavily dependent on a single contractor in China for assembly and testing of its products, a single contractor in Japan for the production of its transmit semiconductor chip and a single contractor in China for the production of its receive semiconductor chip.

Convertible Financial Instruments

The Company bifurcates conversion options and warrants from their host instruments and accounts for them as freestanding derivative financial instruments if certain criteria are met. The criteria include circumstances in which (a) the economic characteristics and risks of the embedded derivative instrument are not clearly and closely related to the economic characteristics and risks of the host contract, (b) the hybrid instrument that embodies both the embedded derivative instrument and the host contract is not re-measured at fair value under otherwise applicable generally accepted accounting principles with changes in fair value reported in earnings as they occur and (c) a separate instrument with the same terms as the embedded derivative instrument would be considered a derivative instrument. An exception to this rule is when the host instrument is deemed to be conventional, as that term is described under applicable U.S. GAAP.

When the Company has determined that the embedded conversion options and warrants should be bifurcated from their host instruments, discounts are recorded for the intrinsic value of conversion options embedded in the instruments based upon the differences between the fair value of the underlying common stock at the commitment date of the transaction and the effective conversion price embedded in the instrument.

Debt discounts under these arrangements are amortized to interest expense using the interest method over the earlier of the term of the related debt or their earliest date of redemption.

Revenue Recognition

Revenue consists primarily of the sale of the wireless modules. The Company applies the following five steps: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when a performance obligation is satisfied. The Company considers customer purchase orders to be the contracts with a customer. Revenues, net of expected discounts, are recognized when the performance obligations of the contract with the customer are satisfied and when control of the promised goods are transferred to the customer, typically when products, which have been determined to be the only distinct performance obligations, are shipped to the customer. Expected costs of assurance warranties and claims are recognized as expense.

Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction, that are collected by us from a customer and deposited with the relevant government authority, are excluded from revenue. Our revenue arrangements do not contain significant financing components.

Sales to certain distributors are made under arrangements which provide the distributors with price adjustments, price protection, stock rotation and other allowances under certain circumstances. The Company does not provide its customers with a contractual right of return. However, the Company accepts limited returns on a case-by-case basis. These returns, adjustments and other allowances are accounted for as variable consideration. We estimate these amounts based on the expected amount to be provided to customers and reduce revenue recognized. We believe that there will not be significant changes to our estimates of variable consideration.

If a customer pays consideration, or the Company has a right to an amount of consideration that is unconditional before we transfer a good or service to the customer, those amounts are classified as contract liabilities which are included in other current liabilities when the payment is made or it is due, whichever is earlier.

Contract Balances

We receive payments from customers based on a billing schedule as established in our contracts. Contract assets are recorded when we have a conditional right to consideration for our completed performance under the contracts. Accounts receivables are recorded when the right to this consideration becomes unconditional. We do not have any material contract assets as of September 30, 2020 or December 31, 2019.

During the three and nine months ended September 30, 2020, the Company recognized $0 and $436,000, respectively, of revenue that was included in the contract balances as of December 31, 2019.

Revenue by Geographic Area

In general, revenue disaggregated by geography (See Note 10) is aligned according to the nature and economic characteristics of our business and provides meaningful disaggregation of our results of operations. Since we operate in one segment, all financial segment and product line information can be found in the condensed consolidated financial statements.

Foreign Currency

The financial position and results of operations of the Company’s foreign operations are measured using currencies other than the U.S. dollar as their functional currencies. Accordingly, for these operations all assets and liabilities are translated into U.S. dollars at the current exchange rates as of the respective balance sheet date. Expense items are translated using the weighted average exchange rates prevailing during the period. Cumulative gains and losses from the translation of these operations’ financial statements are reported as a separate component of stockholders’ equity, while foreign currency transaction gains or losses, resulting from re-measuring local currency to the U.S. dollar are recorded in the condensed consolidated statement of operations in other expense, net and were not material for the three and nine months ended September 30, 2020 and 2019.

Reverse Stock Split

On March 31, 2020, the Company held a special meeting of its stockholders, at which its stockholders approved an amendment to the Company’s certificate of incorporation, as amended, to effect a reverse stock split of all of the outstanding shares of common stock at a specific ratio within a range from one-for-four to one-for-twenty, and to grant authorization to the board of directors to determine, in its sole discretion, the specific ratio and timing of the reverse stock split. On April 9, 2020, a 1-for-20 reverse stock split was effected and the condensed consolidated financial statements have been retroactively adjusted. All common stock share numbers, warrants to purchase common stock, prices and exercise prices have been retroactively adjusted to reflect the reverse stock split. The par value of the common stock and the Series A 8% Senior Convertible Preferred Stock, par value $0.0001 per share (the “Series A Preferred Stock”) outstanding and its par value were not adjusted for the reverse stock split. The common stock began trading on a split-adjusted basis on that day under the new CUSIP number 86633R 203.

Recently Issued and Adopted Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2018-13, "Fair Value Measurement (Topic 820)". The FASB developed the amendments to Accounting Standards Codification 820 as part of its broader disclosure framework project, which aims to improve the effectiveness of disclosures in the notes to financial statements by focusing on requirements that clearly communicate the most important information to users of the financial statements. This update eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some of the existing disclosure requirements. The standard will be effective for fiscal years beginning after December 15, 2019, including interim periods within such fiscal years, with early adoption permitted. The Company adopted this guidance as of January 1, 2020 and the adoption did not have a significant impact on the condensed consolidated financial statements.