ZISONIX F9 wireless Bluetooth earbuds

True wireless in-ear earbuds with a charging case. Work with iOS and Android; Bluetooth name "F9". F9 Sport 5.1: Bluetooth 5.1, IPX7 waterproof, dual mic with CVC 8.0 noise reduction, over 5 h of playback plus 25 h from the case; 15 min of charging gives 2 h of playback. F9: Bluetooth 5.0, touch controls (play/pause, calls, next/previous track), digital battery display on the case, automatic reconnection to the last device, noise reduction. Hi-fi stereo sound. Colour: black.