headset uses a streamlined design,extremely comfortable to wear solid neck
brace can be adapted to different conditions of use smooth switching between
music,superior audio quality,as possible to grasp
Battery type: Lithium-ion battery.
Battery Life: up to 6 hours (72 hours standby time)
Support the Bluetooth
Works with all compatible Bluetooth-enabled phones or music devices.
Wireless enjoy stereo music playing phone
Audio range: 2.402GHZ ~ 2.480GHZ ISM Band
wireless transmission standard: CLASS 2
Channel: 79channels of 1Mhz BW
transmission range: <= 10M
transmission speed: 57 ~ 723Kb / S
polymer lithium-ion battery 3.7V 150mA
Charging time: 1-2 hours
Work awesome.... Shipping took longer than I expected it to but the headphones were packed well and not damaged in any way. The sound quality is excellent .... They are easy to use and the battery stay charged almost as long as promised they easily connect to all my bluetooth devices.