ES71 Platinum, wireless earphones, BT v5.3, 500mAh battery for 70 hours of use and 130 hours of standby BT version : v5.3. Chip: JL7003. Supported protocols : Headset, Hands-free, A2DP, AVRCP. Transmission distance : 10m. Transmission frequency : 2.4GHz. Speaker unit : 10mm. Impedance : 32Ω ± 15%. Frequency response : 60-20000Hz. Sensitivity : 92dB ± 3dB. Battery capacity : 500mAh. Charging input : DC5V, Type-C. Charging time : about 2 hours. Talk / music time : 70 hours (80% volume level). Standby time: 130 hours. Earcups with magnets. Silicone neck band. Battery display : supports for Apple phones and some Android phones. Length : 90cm. Weight : 54g.
