Ann: Appendix 4C - quarterly, page-2

On 15 April 2020 we announced that the testing conducted to-date confirms that the changes made to the design have returned the devices to electromechanical compliance.
As was anticipated, the return to compliance resulted in substantive and dramatic improvement to the acoustic output of the devices.The remaining steps required, prior to publication of performance specifications, are metrological inspection and statistical verification.
Metrological inspection is critical to confirm that the manufacturing process maintains compliance to specifications while statistical verification characterizes performance on different and larger numbers of wafers.The Company’s testing capabilities have been partially restricted since the introduction of COVID-19 restrictions in Israel.