LG HBS-750.ACUSWHK White Tone Pro HBS750 Bluetooth Wireless Stereo Headset Type: Bluetooth Stereo Headset Noise Reduction: Yes Ear Coupling: Behind the Neck Talk Time: Up to 15 hour(s) Music Time: Up to 10 hour(s) Standby Time: Up to 504 hour(s) Charge Time: Less than 2 hour(s) Bluetooth Version: 3.0