Noise Airwave Bluetooth in Ear Neckband with 50H of Playtime, 3 EQ Modes, ENC for Calling, Low Latency(Upto 50ms), 10mm Driver, BT v5.3(Jet Black)Up to 50 hour playtime: For playlists that you never want to hit pause on, without needing to worry about running out of charge. 3 EQ Modes (Tru bass, Tru balance, Tru rock ): You deserve to listen to audio the way you like best. We make that happen for you with Tru Bass, Tru Balance and Tru Rock. 10mm Driver: Dive into the world of balanced audio quality. ENC for superior calling: Experience a clear calling experience when you talk on the phone with