Specification: Item Type: Neckband Bluetooth Headphones_x000D_Material: Plastic, ABS_x000D_Chip Solution: 7006_x000D_Battery Type: Built In 800mAh Lithium Battery (Included)_x000D_Bluetooth Version: 5.1_x000D_Connection Distance: 10m/32.8ft_x000D_Memory Card: Maximum Support 128GB (Not Included)_x000D_Playback Time: About 100 Hours_x000D_Talk Time: About 100 Hours_x000D_Charging Time: About 3.5 Hours Features: 1BUILT IN 800MAH LITHIUM BATTERY: Sports neckband headset has a built in 800 mAh battery and an upgrade chip. When fully charged, you can play the headset continuously for up to 100 hours (50% volume). 2BUILT IN HD MICROPHONE: Neckband magnetic earbuds have a built in HD microphone. CVC6.0 noise reduction technology reduces outside noise. You can enjoy excellent bass and crystal clear treble. 3BLUETOOTH 5.1 CHIP: Neckband bluetooth headphones with bluetooth 5.1 chip. Stable data transmission and wide wireless coverage. Compatible with all bluetooth enabled devices. 4ERGONOMIC DESIGN: Neckband earbuds are ergonomically designed so that the weight of the headphones is evenly distributed around the neck. 27.5 degree tilt design prevents the headphones from falling off. 5IPX7 WATERPROOF: Magnetic neckband earphone has a built in nano coating to prevent sweat and rain. You are free to enjoy jogging, biking, driving, hiking, working out and other urban sports. PackageList: 1 x_x000D__x000D_NeckbandBluetoothHeadphones 4 x Earbuds 1 x Charging Cable 1 x Instruction Manual