Bluetooth enables communication without wires by using radio transceivers embedded inside 2 or more units. Bluetooth is a radio frequency that assures for compatibility as it deploys a common standard recognized globally.
Bonnaire Bluetooth V2.0/ V2.1 Headset is best to operate with your mobile phone in a distance range within 10 metres (33 feet). Bluetooth signal would be interfered by obstacles, such as wall, human body, etc. Therefore, for best result, please make sure there is no obstacle in-between.
For more informaiton, the following websites would be helpful:
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