Ugetde Best Wireless Multifunctional Bluetooth Handsfree Car Kit/Adapter FM Transmitter/Calling/MP3 Player, Dual USB Ports for Cellphones Power/Battery charge Newest version : hands-free calls, enjoy clear music, GPS voice navigation, charge your device Built-in microphone makes hands-free calls easy Adapting with professional-grade Bluetooth module Supports USB flash disk playing An universal USB charging port for charging mobile phones and other devices (output: dc 5v/1a), so you can power up while you&#039;re talking or listening to music