Specification: Item Type: Bluetooth Earphones_x000D_Material: ABS_x000D_Bluetooth Version: V5.1_x000D_Wireless Configuration File: A2DP/HFP/HSP/AVRCP_x000D_Transmission Distance: Approx. 10m/32.8ft_x000D_Frequency Range: 2.402GHz-2.480GHz_x000D_Noise Reduction Version: CVC8.0_x000D_Talk Time: About 5 Hours_x000D_Music Playback: About 5 Hours_x000D_Earphone Battery: Lithium Battery 50mAh(Delivered With Battery)_x000D_Charging Bin Battery: Lithium Battery 2200mAh(Delivered With Battery)_x000D_Charging Time: About 2 Hours_x000D_Standby: 280 Hours Features: 1Unique Design: The unique creativity and unique design style of this wireless earphone brings unexpected surprises and experiences. Unique mirror design, suitable for high end taste. 2Display Charging Status: LED digital display clearly shows the remaining battery of bluetooth headset, so that you can keep track of the charging status of the device. 3Long Standby Time: Up to 110 hours of playback time, the wireless headset can play for about 5 hours on a single charge. The charging case extends to 110 hours. Ideal choice for long trips. 4Quality Sound: Double bass and 3D surround sound, quality stereo, strong bass. The noise cancelling headphones feature a 6mm ultra?thin elastic composite diaphragm, a HiFi driver and a unique stereo design. 5Superior Performance: Bluetooth 5.1 technology, stable wireless connection. Bluetooth wireless earbuds have 2?3 times the signal strength and range of influence of some other Bluetooth. 6Convenient to Use: Bluetooth earplugs are made of high quality ABS to ensure a comfortable touch. It also acts as a portable power source. The charging box can charge your phone as well as your headphones. PackageList: 2 x Headset 1 x Charging Box 1 x Charging Line 4 xEarmuff