Specifications: With Bluetooth audio receiver module, cell phones and Bluetooth module pair is connected, via cell phone to play MP3, which greatly facilitates the product's features and entertainment. This Bluetooth V3.0 Speaker MP3 decoder board is also available to play U disk or SD card MP3 files, as well as radio broadcast. Features: Support outside signal switch directly. Support Bluetooth (Bluetooth 3.0 plus EDR), paired with the phone can be achieved after a good music radio. Support FM remote display, MP3 player. Module designed with MP3/WMA audio decoder chip. Support for USB/SD card switch, the song, the next song, fast forward, rewind, volume plus/minus, play/pause, stop, single repeat, mute, shutdown, elections songs. Support for FAT16, FAT32 file system. Support for MP1 Layer3, MP2 Layer3, MP3 Layer3 version of the song. Support 32 - 320kbps MP3 songs. Support power-off memory function: memory before power play songs and volume. Remote control, with build-in battery which is CR2025, 3V.(Not Included) Type: Headband Color: Black Voltage: 12 V Bluetooth Version: Bluetooth V3.0 + EDR Material: Electronic Components, Plastic Features: Quick Reading, Convenient to Use Remote Distance: 2m/78.74" (Approx.) Size: 108mm x 25.6mm/4.25" x 1.01" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Bluetooth V3.0 12V MP3 WMA Decoder Board Audio Module (The TF card is not included.) 1 x Remote Control(The CR2025 is not included.)