Bluetooth 5.0 wireless earbuds, built-in Bluetooth 5.0 chip, automatic playback and matching. The earphones support 3 hours playback. The charging case can be fully charged in 1.5 hours and standby 300 hours to basically meet your daily needs. Excellent Sound Quality The wireless headphones feature 9D stereo surround sound with deep bass and mids at perfect levels that are pleasing to the ears. You will feel like an immersive concert. The microphone built into each Bluetooth headset uses call noise cancellation to ensure clear and realistic sound. It will allow you to enjoy high quality chats anytime and anywhere. Intelligent Touch Control With intelligent touch control design, there is no pressure when touching the controller, easy to operate and enjoy great, reduce the pain caused by buttons Comfortable Wearing Ergonomically Designed In-Ear Headphones Never worry about falling out anymore when you wear our wireless headphones for running Strong Compatibility The wireless earphones are compatible with all Bluetooth-enabled devices and are very easy to pair with any iOS, Android or Windows devices.