Carpanion Car stereo Kit FM Transmitter Radio Adapter with Bluetooth Hands-free Calling, USB Charger, Magnetic Dock Mount Holder, split type power & operating With the built-in 200mAh Li-battery, the control hub can work for 2.5H when fully charged. Compatible with virtually most Smart Phones and MP3s/ MP4s. High quality, compact and professional design Bluetooth v4.0 make and receive calls on your phone handsfree while driving Enjoy your favorite music with a superior Hi-Fi sound quality and charge your device at the same time while driving Control hub magnetically docked with the DC neck, easy to install and remove, and allows you to angle at any position to fit most car sockets location. The flexible goose-pipe makes it convenient to find the best position for your device. It is compatible in the worldwide. Goose-pipe with rotation prevention design keeps your devices steady & firm in its position