Features:True wireless design, left and right earphone channels are separated. It can be used solely or in pairs.BT 5.0 ensures high data transfer speed, stable and fast connection, and low power consumption.Built-in microphone on both earbuds, intelligent noise reduction, ensures high-quality calls.40mAh earbuds can be automatically charged in 800mAh charging box which can charge both earbuds for 10 times.With touch control button, easy to control playing/pausing music, next/previous track and answering/ending calls.Sweatproof, no worry about splashing water and sweat, enjoy music and sports freely.3.5g lightweight and mini size fit well to your ear canal, comfortable to wear.Specifications:BT: 5.0Waterproof Level: IPX5BT Transmission Distance: 10 meters barrier-free.Battery Capacity of Charging Case: 800mAhBatteryCapacityof Earphones: 40mAhCall Duration: 4hMusic Duration: 4hHeadphone Charging Time: 1hCharging Time of the Box: 2hStandby Time: 120hProduct Size: 80*36*31mm/3.1*1.4*1.2inchPackage Size: 130*110*47mm/5.1*4.3*1.8inchNote:The mobile phones and computer showed in the picture are not included.Packing List:2 * Earphones1 * Charging Case1 * USB Charging Cable1 * User Manual