Kinivo BTC8 Bluetooth FM Transmitter for iPad, iPhone4, 3GS, 3G, all Android Phones - Droid, HTC, Samsung with Wireless Music Streaming & Hands Free Calling Play music and receive handsfree calls from your Iphone, Android phone or any other bluetooth device. Designed for xtreme music fidelity - pure stereo sound coming from your A2DP/bluetooth enabled device. Dual-mic for elminating background noise in handsfree calls. Has an inbuilt USB charging port for your device. AUTO-TUNE feature makes finding the clearest FM Station simple! Just press down the control knob and the best station is automatically found for you!