Pioneer SE-E9TW-Y Yellow Truly Wireless In-Ear Sports Hadphone - bluetooth 5.0, BT-Profiles: A2DP/AVRCP/HFP/HFP/HSPSP, codecs SBC/AAC, IPX5 and IPX7 wather resistant, up to 5 h running time/ 20 h with charging case, up to 10 m range, 6 mm dynamic drivers, frequency response: 20 - 20000 Hz, incl. S/M/L ear