wireless headphones

wireless headphones

Bluetooth Version: Bluetooth 4.1 + EDR
Frequency Response: 20-20,000Hz
Transfer Distance: 10M
Talk Time: 8 hours
Microphone: Built-in
Low Battery Notification: Yes
Music Playing Time: 4 hours
Standby Time: 120 hours
Rechargeable Lithium Battery 300mAh
Changing time: 2 - 3 hours