Noise Cancelling Stereo Bluetooth Wireless Over The Ear Headphone Headset for Cell Phones Type: Bluetooth Stereo Headset Noise Reduction: Yes Ear Coupling: Over the Ear Talk Time: Up to 10 hour(s) Music Time: Up to 18 hour(s) Standby Time: 400 hours Charge Time: 2.5 Hours Bluetooth Version: 4.0