Bluetooth version: 5.0 Headphone speaker: 200HZ-8KHZ Headphone battery capacity: 150MAH Transmission distance: >10m Talk time: 2 hours Playing time: 8 hours Charging time: 1.5h 【Bluetooth 5.0 Wireless headset】: This headset can support almost all devices with bluetooth. You can use it easily to connect mobile phones through wireless connection without cables, with strenger and faster connection, convenient for daily use. 【Quickly Match】Full of a sense of technology, say goodbye to cumbersome pairing, pick up the Internet with seconds of power on, experience the wireless smooth sound. 【Awareness Of Danger】: This open-ear headset can deliver sound through your cheekbones to your cochleas, If you wanna hear audio and also be aware of your surroundings or hear your name called, then these air conduction headphones are for you. It's much safer for running, cycling, hiking or driving while answering calls. 【Healthy and Clean】: Open ear design air conduction headphones can avoid wearing discomfort caused by in-ear or over-ear headphones, and keep the inside of the ear canal clean and hygienic, you can also wear them with glasses for audiobooks, watching TV, movies etc. without disturbing others. 【Lightweight and 360 Bendable】: This bluetooth headset is super light and flexible, skin-friendly silicone design headphones for you. Comfortable to wear, you will not feel any pain even after prolonged wearing, The innovative titanium alloy memory design earphone supports 360 bending without deformation. Durable, practical and convenient. Package Included: 1 x Wireless Earphones 1 x Data Cable1 x User Manual