Earphone F9 TWS 5.0 Wireless, Bluetooth Earbuds with 2000mAh Power Back Phone Charger For iPhone, Android and Windows Product Description: Material ABS+Metal Chipset Juxin TS3005 The control mode Button BT Version 5.0 Support BT Profile A2DPV1.3,AVCTPV1.4,AVDTPV1.3,AVRCPV1.6,GAVDPV1.3,HFPV1.7,HIDV1.0,EDRBLE BT working frequency 2.402GHz-2.480GHz Playing Time 4 hours Calling Time 4 hours Charging Time 1.5 hours Standby Time 120 …