Specification:Features:The quality of sound is good you can really enjoy it.Pick up and automatic pairing convenient to use.Ergonomic design comfortable to wear.5.0 chip is faster and more stable.One operation easy and convenient to use.Light as time to wear will not be tired.With charging box not afraid of power off.Specifications:Color: black white (optional)version: 5.0Battery capacity: 1500mAhdistance: approx. 10 meters / 32.8 ftHorn impedance: 8mm 32Sensitivity: -42dBWorking temperature: 10 to 50Charging voltage: DC 5VStandby time: About 120 hoursMusic time: About 3 to 5 hoursCharging time: About 1.5 hoursCharging box parameter:Battery capacity: 1500mAhOutput voltage: 5VOutput current: 5V/1APackaging size: approx. 15*8*4 / 5.9*3.1*1.6 inchPackage List:Headset * 1Usb cable * 1Replace earplugs (2pcs/set) * 2Charging base * 1Instruction manual * 1