Features 1、Multi-functional: Support Bluetooth 4.1., support automatic back connection, WAV+APE+FLAC+MP3 lossless decoding. 2、Exquisite workmanship: precise cut and interface ensuring perfect applicability, suitable for installation location and easy installation. 3、Reliable material: made of high-quality materials, which can effectively avoid corrosion and wear as well as durable. 4、Professional chip sets provide excellent performance in the system. 5、Lossless decoding, stereo output, board stereo 2W amplifier. Specification Features: 1. Multi-functional: Support Bluetooth 4.1., support automatic back connection, WAV+APE+FLAC+MP3 lossless decoding. 2. Exquisite workmanship: precise cut and interface ensuring perfect applicability, suitable for installation location and easy installation. 3. Reliable material: made of high-quality materials, which can effectively avoid corrosion and wear as well as durable. 4. Professional chip sets provide excellent performance in the system. 5. Easy to operate, anti-aging and can extend the service life. 6. Lossless decoding, stereo output, board stereo 2W amplifier. 7. Support USB Audio function, with U disk and TF card playback. 8. Support infrared remote control. Specifications: Condition: 100% Brand New Micro USB power supply: Micro USB 5V power supply USB Audio: connect the computer with USB data cable and use it as an external sound card LED indicator: blue light in Bluetooth mode is constant on, and blue light in music mode flashes Infrared remote control: support infrared remote control operation Bluetooth decoding IC: Main control chip of the decoding board 3.5mm stereo output: standard 3.5mm interface, output stereo audio source, can insert headphones, connecting to power amplifier and other devices If the U disk plays, it is recommended to use USB 5V power supply (3.7v lithium battery power supply is not recommended) because the early U disk does not support 3.7v voltage. POWER interface must be used when using mobile power supply or computer power supply. USB Audio interface is not allowed, otherwise music on U disk cannot be played. USB flash drive or TF card (not included), decoding board only supports FAT16/FAT32 file system, not NTFS system Size: Approx. 5 * 4 * 1cm / 2 * 1.6 * 0.4in Package List: 1 * Module 1 * Remote Control Package List