Equipped With upgrade BT technology,this headphone can offer automatic and quick pairing,keeping connected stably and continuously.With multi-function button, you can enjoy high sound quality and easy operation.Large battery capacity gives you enough time for entertainment and you can know the battery power anytime and anywhere through the digital intelligent display.You will love it.Features:One Key Easy Operation.Adopt one-button blind press design, avoid poor touch-control,and make it easier and simple to operate.Automatic & Quick Pairing.Upgrade technology offers automatic boot pairing,and makes BT connection faster and more stable.Superior Sound Quality. High sound quality and wireless noise reduction let you enjoy shock bass and surging sound effect.Convenient Multi-function Button.Enjoy easy call answering,call hang up, call rejection and music control with multi-function button.LED-digital Intelligent Display.Equipped with digital intelligent display, it can provide real-time battery power display.High-capacity Battery.With large battery capacity,you can enjoy 40-hour standby time,5-hour call time and 4-hour play time after a full charge.Waterproof & Sweat-proof.No worry about getting wet or damage while dealing with water activities.Lightweight and Portable.Easy for you to carry and store.Specifications:Model:JS1Material:ABSColor: BlackBT VersionBT 5.0Headset Battery:3.7V/40mAhCharging Box:3.7V/300mAhHeadphone Charging Time:About 1 hoursCharging Box Charging Time:About 1.5 hoursCall Time:About 5 hoursPlay Time:Abut 4 hoursHeadphone Standby Time:About 40 hoursTransmission Distance:About 10 metersBluetooth Protocol:HFP/A2DP/HSP/AVRCPCharging Box to charge the headset:single earphone about 6 timesPackage Size:14.1*7.9*3.2cm/5.6*3.1*1.3inPackage Weight:68g/2.4ozNote:Charge in a safe environment.When charging the charging box, please charge the charging box separately from the USB charging cable as soon as the charging indicator indicates full power,so as to avoid damage to the charging box after a long time of charging.When playing music,please adjust the music to appropriate volume to avoid hearing damage at high volume for a long time.Try to avoid using the headset in a place with interference sources, otherwise it may affect the headphone signal.Try to avoid using this headset in a corrosive environment to avoid affecting the function of the headset.Package List:1*BT earphone1*Charging box1*Charging cable1*Earplug silicone cap1*User Manual