Bluetooth handsfree function connects to most Bluetooth cellphones - Flexible neck design - Fashionable steering wheel remote control included - FM Transmitter frequency range: 88~108.0 MHz - 1.5" LCD display phone number when there is a call coming - Bluetooth version: V2.1 - Frequency: 2.4GHz - Features stereo Bluetooth hands-free - Support USB / flash drive / SD/MMC card (max 8GB) - Can play from CD or other MP3 sources - Support MP3/WMA music formats - Power-off memory - Broadcast music stored up by the automobile through car stereo system - Echo cancellation & noise suppression (CVC) - Car cigarette lighter power supply (12~24V DC) - Interfaces: USB + 3.5mm audio + SD - Package included: - 1 x MP3 player with car charger - 1 x Steering wheel remote control (1xCR2025 included) - 1 x Remote control (1xCR2025 included) - 1 x 3.5mm male to male audio cable - 1 x English/Chinese user manual