Generic 20 Hours Play time Swimming Waterproof Bluetooth Earphone Dual Wear Style Sport Wireless Headset Tws Ipx7 Earbuds Stereo

20 Hours Play time Swimming Waterproof Bluetooth Earphone Dual Wear Style Sport Wireless Headset TWS Ipx7 Earbuds StereoHeadset Feature：Bluetooth version: V5.0 dual modesDistance: 15-20 metersBattery: Rechargeable lithium battery 55mAhFull charge time: 1.5 hoursPlay time: about 3.5 - 5 hours * 4Earplug charging current: 50mAMicrophone sensitivity: -38±2dBFrequency range: 20~2000HzHeadphone weight: 7.5gWaterproof: IPX7Colours: BlackCharging box:Battery: Rechargeable lithium battery 650mAh (providing 3-4 times power)Full charge time: 2 hoursInput: 5V 500mAOutput: 5V 100mASize: 58 * 10 * 13mmWeight: 55 grams