The Boltune Active Noise Cancelling On-Ear Wireless Stereo Headphones. Black color design. Model: BT-BH010.Features:- Latest AMS as3435 noise cancelling technology - 30-Hour playtime in less than 1 hour charging: Qualcomm CVC Audio technology Qcc3003 is designed for Bluetooth 5.0 mono channel/stereo headphone. - 500mAh battery offer 30-hour playtime in less than 1 hour charging and 5 minutes Charging allows more than 2 hours use.- The effective range of BT-BH010 wireless headphone is up to 66ft, four times longer than other Bluetooth 4. 2 headphones.- Cozy feeling Professional high imitation protein ear pads and 90-degree revolving earmuffs. - Noise-reducing microphone: Upgraded call quality. Double microphone noise reduction system suppresses environmental noises. Built-in CVC 6.0 microphone help you get clear sounds in spite of strong wind or other noises, and you can enjoy wireless or wired mode depending on your requirements.Model Number: BT-BH010