Lypertek has succeeded in creating a completely impressive overall package, which is just as impressive as the Oriveti Hi-Fi earphones according to their price range. The sound is sensational, the operation super simple and the comfort better than with any TWS I have yet had in my ears. The TEVI surpass many more expensive earphones in sound and function. Lypertek heralds a new era in which even True Wireless is no longer compromised.