Handsfree Bluetooth Car Kit Rear View Mirror With Caller ID and Wireless Earpiece, Plus FM Transmitter LCD displays incoming caller ID, It can all so displays name if Programed. Full Duplex/Noise & Echo Suppression/DSP Technology, Has USB Port Built-in Speaker & Microphone/ FM Transmitter/ Wireless Earpiece Supports U-Disk & SD/MMC Card to playMP3 TTS system announces Incoming Call/ Telephone Book Function.