Pama Sigma Bluetooth Handsfree Sun Visor with Caller Name Display Phonebook Bluetooth V 1.2 compliance Voice dialing supported - Supports both headset and handsfree profiles Call transfer - 20 caller unit memory - microphone mute facility - unit volume control buttons 6 hours talktime and 130 hours standby 10 meter range Can be paired with up to 4 devices (will only work with one device at a time) - Charging status LED indicator - Firmware upgrade connection socket