Amplify Chorus series Bluetooth Wireless Headphones - Dark blue

Features:- Version: 4.2Range: 10 metersBattery: 400 mAh Li-IonCharge time: 2.5 HoursPlayback time: 10 HoursDriver size: 40 mmFrequency: 20 Hz - 20 KHzSensitivity: 115 +/- 3 dBDiameter: 40 mmWhat's in the box1 x Headphones