The latest masterpiece DF630+ created by Bluedio R&D Team which combined the Bluetooth 4.0 HD Audio and Low Energy Technology with the Bluedio Original Composite Drive Unit, creates an excellent business headset of Bluedio. DF630+Technical Specification: Bluetooth Version: Bluetooth V4.0 Support Profiles: A2DP AVRCP HSP HFP Standby Time: around 400hrs Talk Time: around 5hrs Music Playtime: around 5hrs Battery: 90mA Li-Polymer rechargeable battery Frequency Range: 2.4GHz-2.48GHz Operational Temperature: -10 to 50°C Operating Distance: Up to 10m (free space) Accessories: DF630+Bluetooth Headset 1pc USB Charging Cable 1pc Ear Cord 1pc Ear Hook 1pc User Manual 1pc