JETech Wireless Bluetooth FM Transmitter with USB Charging, Music Control and Hands-Free Calling Multifunctional design: Hands-free calls, enjoy good quality music, GPS voice navigation, etc. Bluetooth technology supports hands-free phone calls. Excellent hi-fi stereo sound quality. Detachable design. Gooseneck allows different orientations. A universal USB port to charge your smartphones, MP3 or GPS.