Check the listing for details. In Car Bluetooth FM Transmitter Radio MP3 Wireless Adapter Car Kit USB Charger 2. Color: Black or White, Condition: New. Listed at 13.99 USD. In Car Bluetooth FM Transmitter Radio MP3 Wireless Adapter Car Kit USB Charger 2 Product Information: • 100% Brand New • Bluetooth Wireless connection, Build in microphone, FM transmitter, USB Charger, and MP3 Player • Supports Bluetooth hand-free phone call, build-in microphone. • Noise cancelling technology that allow for clear and crisp phone calls and music. • With FM transmitter function, supports adjustment. Full-frequency covered 87.5-108.0MHz. • Allowed to accept MicroSD card up to 32G and play playing music on MP3/WMA form. • Come with 2 USB charging ports (5V/3.1A and 1.0A) for charging your smart phone or tablet. • The main button on the middle supports to change music or swap call, the near rotary knob is to change volume. Details: • Bluetooth version: V4.2 • Bluetooth protocol: A2DP, AVRCP • Bluetooth band: 2.4 GHz-2.48 GHz • Bluetooth Transmission distance: 5m • FM frequency: 87.5-108 mhz • FM transfer distance: 2meters • Input voltage: 12-24V • Output: 5V/3.1A • Music format: mp3, wma