1.The world's smallest micro stealth to mono Bluetooth
headset, the main telephone conversation 2.The micro Bluetooth headset
will automatically change depending on your phone system sound size
periphery; in order to avoid lets other people hear the sound 3.Supports
two phones simultaneously connected 4. headset is not suitable for
listening to music (NOKIA exception), it is only used for incoming and
outgoing calls. 5. Britain CSR 6130 CHIP.