Parameters

1)bluetooth version: Taiwan Luoda V4.1     

2)Frequency range: 2.402gHz-2.480gHz
3) Transmission power: Class 2
4)Transmission distance: about 10m
5)79channels of 1Mhz BW
6)connection: point to point                                                                       
Talking time: up to 15 H
Music time: up to 10 H
Standby time: up to 200hours
Charge time of less than 3 H

Universal compatible with all mobile phones, tablets pc...
1.Stereo Bluetooth headset for wireless music plus call functionality
2.Unique around-the-neck design that's lightweight and comfortable for all-day us
3.Vibration alert on call
4.Support apt-X technology
5.Exceptional audio with noise suppression and echo cancellation
6.Magnetic ear buds snap into place when not in use; music controls on neck strap    7.High quality stereo bluetooth Wireless  headset with music & phone functions