forward-looking statements that we may make. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this press release are inherently uncertain and may not occur, and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. Accordingly, you should not rely upon forward-looking statements as predictions of future events. We disclaim any obligation to update publicly or revise any forward-looking statements for any reason after the date of this press release. Any reference to our website address in this press release is intended to be an inactive textual reference only and not an active hyperlink.
COVID-19
The emergence of the coronavirus disease in 2019, or COVID-19, around the world, and particularly in the United States and China, and the accompanying responses of governments and businesses to the pandemic present various risks to us, not all of which we are able to fully evaluate or even to foresee at the current time. While the COVID-19 pandemic did not materially adversely affect our financial results, business operations or liquidity in the quarter ended June 30, 2020, economic and health conditions in the United States and across most of the globe changed rapidly during, and are continuing to change after the end of the quarter. Globally to date, all aspects of our business remain fully operational, our work from home contingency plans have been implemented and are operating successfully. The pandemic has resulted in increased demand for certain of our products and resulting order volumes have created additional pressure on our supply chain. To date, while the increased demand has not resulted in any material delays to our production cycle, we continue to work with our supply chain and contract manufacturers in an effort to ensure continued availability of all anticipated inventory requirements. However, we cannot at this time predict whether, or to what extent, our efforts will be successful. Additionally, we saw decreases in certain operating expenses, such as travel and trade show expense, during the three months ended June 30, 2020 due to the COVID-19 pandemic that we cannot ensure will be maintained. We intend to continue to monitor our business very closely for any effects of COVID-19 for as long as necessary on an ongoing basis.
Due to the above circumstances and as described generally in this Form 10-Q, our results of operations for the three and six months ended June 30, 2020 are not necessarily indicative of the results to be expected for the full year. Management cannot predict the full impact of the COVID-19 pandemic on our sales channels, supply chain, manufacturing and distribution, or on economic conditions generally, including the effects on our current and potential customers, who may curtail spending on investments in current and/or new technologies, delay new equipment evaluations and trials, and possibly delay payments based on liquidity concerns, all of which could have a material impact on our business in the future. Similarly, our supply chain and our contract manufacturers could be affected, which could cause disruptions to our ability to meet customer demand. Although we have not been materially impacted to date, we cannot predict the extent to which this may impact the future results of our operations. If COVID-19 were to cause such impacts in the future, there would likely be a material adverse impact on our financial results, liquidity and capital resource needs. The use of our revolving line of credit is currently restricted based on the financial covenants we are subject to, and COVID-19 has further created significant uncertainty within capital markets such that access to sufficient additional capital resources, if needed, may not be available. Thus, the ultimate extent of the effects of the COVID-19 pandemic on the Company is highly uncertain and dependent upon future developments, and such effects could exist for an extended period of time even after the pandemic might end.
Non-GAAP Financial Measures
To supplement our financial results presented in accordance with Generally Accepted Accounting Principles (GAAP), we are presenting the following non-GAAP financial measures in this press release and the related earnings conference call: non-GAAP net loss, non-GAAP diluted net loss per share, adjusted EBITDA and free cash flow. These non-GAAP financial measures are not based on any standardized methodology prescribed by GAAP and are not necessarily comparable to similarly titled measures presented by other companies.
Non-GAAP net income and non-GAAP diluted net income per share. We define non-GAAP net loss as net income (loss) as reported in our condensed consolidated statements of operations, excluding the impact of stock-based compensation expense and amortization of acquired intangible assets, which are non-cash charges; acquisition-related expenses and other non-recurring expenses, which are one-time non-recurring charges; adjustments to the tax provision for the CARES Act; and the tax effect on these excluded items. The tax effect of the excluded items were calculated based on specific calculations of each item’s effect on the tax provision. We define non-GAAP diluted net loss per share as diluted net income (loss) per share reported in our condensed consolidated statements of operations, excluding the impact of items that we exclude in calculating non-GAAP net loss. We have presented
