Up to 15 hours play time in single charge Hands Free calling Integrated headphone controls to adjust volume, play and pause and more Foldable headphone design with adjustable headband Earpads rotate, tilt and fold Over ear design for all day wear Bluetooth: Version 5.0 Supported Profiles: A2DP, AVRCP, HFP, HSP Wireless range: 10 m Speaker diameter: 40 mm Rechargeable battery: 300mAh Li-on Battery Socket: Micro USB Charge Time: 2 hou