W-sound F900 Multipoint Retractable Clip Bluetooth Mono Headset (Silver) Type: Bluetooth Mono Headset App-Enabled: Yes Noise Reduction: Yes Ear Coupling: In the Ear Talk Time: Up to 6 hour(s) Music Time: Up to 4 hour(s) Standby Time: Up tp 120 hour(s) Charge Time: 2 Hours