Bluetooth handsfree kit Bluetooth 2.0+edr, compatible with all bluetooth enabled mobile phones Caller id indicate with blue-mask lcd, support english name display Voice dial and last number redial Noise suppression and echo cancelation technology Avrcp profile integrated, control the audio playback when used with bluetooth stereo mobilephone or bluetooth usb dongle Built-in microphone and built-in dual stereo louderspeaker Built-in fm frequency transmitter connect to your car stereo Usb/sd interface for mp3 music file playback Fm earpiece provided for total private conversation phone book for max.200 address list select last 10 calls dial-back Usb interface for bluetooth software update Wireless parking sensor system is available Color box size : 16x20x6.5 cm n.W.: 0.6 kg(without parking sensor)color box size : 33.2x20x6.5 cm n.W: 1.2 kg(with parking sensor)