1、5.2 Version Music Headband: Wireless connection to the mobile phone, you can listen to music on the mobile phone. You can enjoy music while exercising. Suitable for most wireless enabled devices. 2、Removable And Washable:The headband made of nylon has the functions of sweat absorption, non slip, skin friendly and breathable, durable and elastic. Easy daily cleaning. 3、Up To 8 Hour Of Playing Time With 2 Hour Charge: Sleep headphones built in 150mah powerfull rechargeable lithium battery, wireless music headband only needs to be charged for 1‑2 hours, a single charge gives you a full 8 hours of listening. Enjoy your headphones the entire day, without missing a beat. 4、Easy To Use: Bluetooth control panel makes it easy to answer calls, built in microphone to let you not miss any callings. Equipped with a volume manager, it is easy to adjust the volume and listen to music, more convenient to use. 5、Sleep Headphones And Sports Headband 2 in 1: Bluetooth Headband allows you to listen to your music without having to wear additional headphones, and protect you from being disturbed by your mess hair and sweat. Suitable for gym, workout, jogging and other outdoor activities. Also helps with insomnia, relaxation, meditation, travel and more. Item Type: Sports Music Headband Weight: Approx. 80g / 2.8oz Product Material: Nylon Bluetooth Version: V 5.2, EDR MIC Transmission Distance: <1M Transmission Distance: 20M Battery Type: Lithium Battery Battery Capacity: 150mAH (Shipped With Built In Battery) Charging Time: 2 Hours Sound Continuous Working Time: 8 Hours 1 x Headband Headphones 1 x Charging Cable 1 x Instruction Manual