Product type: Headphones
Wearing style: Ear-hook
Manual: Yes
Connectivity technology: Wireless
Bluetooth: Yes
Battery type: Built-in battery
Battery technology: Lithium-Ion (Li-Ion)
Battery lifetime: 30 hours
Rechargeable battery: Yes
Charging source: Battery
Noise-canceling: Yes
Warnings: Keep away from children., Regularly check the condition of the batteries to prevent leaks., Do not use near sources of heat or flame.