CLAOX True Wireless Earbuds, Bluetooth 5.0 Earphones Hi-Fi Stereo Bluetooth Earbuds In-Ear Headphones with Mic and Type C for Travel Gym

BT VERSION: V5.0 Audio Range: 20Hz-20KHz Frequency Range: 2.402GHz-2.480GHz Support Profiles: HFP,AVRCP,A2DP,AVDTP GAP SDP Emission Range: About 10-15 hours Music Play Time: About 3-4 hours Phones Call Time: About 3-4 hours Stand-by Time: Up to 300 Hours Charging Time-Earbud：About 1 Hours  Charging Time-Box：About 2 Hours Earphones Battery: About 30mAh/3.7V Charging Box Battery: About 300mAh/3.7V Speaker Size: Φ10mm/32Ω Microphone: -42dB Speaker Output: 20mW