Fangrui Product Details 1. Oy631 Bluetooth Noise Cancelling Single Ear Wireless Headphone With Microphone 2. Professional Noise-cancelling Headphones:humanized Adjustable Dust-proof High-sensitivity Microphone Enables The Latest Noise Reduction Technology, Can Accurately Pick Up Your Voice And Block Noise From The Surrounding. Even In Noisy Environments, Oy631 Can Ensure Clear Calls. 3. Wireless Headset With Mute Button:there Is A Mute Button On The Microphone, If Necessary, Just Press The Button To Mute Your Voice During A Call. The Mute Button Is Only Effective When Making A Call. 4. Lightweight And Comfortable Bluetooth-compatible 5.0 Earphones:skin-friendly And Soft Ear Cushions, Flexible Headband And Ultra-light Design, Ensure That You Can Focus On Talking And Have A Comfortable Wearing Experience. 5. Compatibility And Music Playback Function:oy631 Wireless Bluetooth-compatible Headset Can Be Paired With Any Bluetooth-compatible Device, And Can Connect To 2 Devices At The Same Time, Such As Mobile Phones, Tablets, Computers, Etc. You Can Also Use It To Enjoy Clear Music. 6. Type-c Fast Charging, Super Battery Life:oy631 Can Provide Up To 17 Hours Of Continuous Talk Time And 100 Hours Of Battery Life, And A Single Full Charge Only Takes 2 Hours. 7. Simple Control, Easy Operation Of The Panel:press The Button With Your Fingertips, You Can Operate, Switch Songs, Adjust The Volume, Answer Or Make Calls (under Bluetooth-compatible Connection) 8. Hifi Sound, The Ultimate Experience:hifi Lossless Music, Real And Shocking Experience Sound Quality. Clean And Thorough, Using Pet Diaphragm, Restore The Real Original Sound.