Specification: Item Type: Wireless Headphones_x000D_Material: ABS + Metal_x000D_Chip: ChinaCache_x000D_Bluetooth Version: 5.1_x000D_Headphone Speaker: 8mm_x000D_Headphone Battery Capacity: 50mAh (Lithium Battery) (Included)_x000D_Storage Box Battery Capacity: 1200mAh (Lithium Battery) (Included)_x000D_Transmission Distance: Approx. 10m-20m/ 33-66ft_x000D_Talk Time: 5-6 Hours_x000D_Playing Time: 5-6 Hours_x000D_Headphone Charging Time: 1-2 Hours_x000D_Charging Time of Storage Box: 1-2 Hours_x000D_Support System: All Bluetooth Enabled Devices and Mobile Phones Features: 1Simply take 2 headsets out from the charging case, and they will connect each other automatically and then enter Bluetooth setting to pair. 2Adopt binaural wireless earphones, getting a full stereo sound listening experience without any cord troubles. 3The shell is made of high quality ABS material, making the headphone is durable and strong. 4The earphone is soft and comfortable, it fits the human ear and won't easily fall, gives you a comfortable usage experience all day. 5Featherweight and mini, easy to carry and use. Perfect for running, jogging, biking, hiking, traveling, working out, yoga, gym, etc. PackageList: 2 x WirelessHeadphones 4 x Ear Caps 1 x Charging Case 1 x USB Cable 1 x Manual