Specification: Features:_x000D_1. Support bluetooth 4.1, support automatic back connection function, support WAV+APE+FLAC+MP3 lossless decoding, stereo channel output, also comes with TF card slot, support U disk, TF card play._x000D_2. Precise incisions and interfaces insure perfect suitability for mounting locations and ease of installation._x000D_3. The module is made of high quality materials, which can effectively avoid corrosion and wear._x000D_4. Professional chip sets provide excellent performance in the system._x000D_5. Standard 3.5mm interface, which can input stereo sound source, plug in earphone, and connect power amplifier._x000D_6. Easy to operate and anti-aging, extend the service life._x000D__x000D_Specification: _x000D_Condition: 100% Brand New_x000D_Material: ABS_x000D_Color: As Pictures Shown_x000D_Size: Approx. 4.5 * 4 * 1cm/1.8 * 1.6 * 0.4in_x000D_Power Supply Interface: Universal Micro USB 5V_x000D_Power Supply Bonding Pad:External 3.7V-5V_x000D_USB (U Disk) Interface: Support play files of MP3/WAV/APE/FLAC format in the U disk, support FAT16/32 file format_x000D_TF Card Slot (NOT Including TF Card): Support play files of MP3/WAV/APE/FLAC format in the TF card, support FAT16/32 file format_x000D_LED Indicator Light: Normally on in bluetooth mode, flash in music play mode_x000D_3.5mm Stereo Output: Standard 3.5mm jack _x000D__x000D_Package List: _x000D_1 * Module Features: 1Support bluetooth 4.1, support automatic back connection function, support WAV+APE+FLAC+MP3 lossless decoding, stereo channel output, also comes with TF card slot, support U disk, TF card play. 2Precise incisions and interfaces insure perfect suitability for mounting locations and ease of installation. 3The module is made of high quality materials, which can effectively avoid corrosion and wear. 4Professional chip sets provide excellent performance in the system. 5Standard 3.5mm interface, which can input stereo sound source, plug in earphone, and connect power amplifier. PackageList: