Welcome to our store! Folder Selection and Playback: Easily select and play different music categories by organizing them into folders. Store DJ music, background music, and children's songs on your card or USB drive. Loop Mode: Press the "arrow" "RPT" symbol or "play" key in playback mode for random (RAN), single loop (ONE), folder loop (FOL), or full loop (ALL). Press (FOL) in the folder to play the entire song in a loop only within that folder. Multifunctional: The decoder board module supports switching between USB, card, Bluetooth, FM, and AUX. It also converts notifications and dialing numbers and supports MP3, WMA, WAV, FLAC, and APE format music. Supports MP3 songs 32‑320kbps, lossless APE, WAV, WMA, FLAC: under 1411kbps. Practical: Supports 4-color spectrum light display and USB sound card function (using a double-ended USB cable, one end connected to the computer, the other end connected to the panel's USB). The computer can play music through the module's audio output and transmit it to the speaker. Bluetooth 5.0: With Bluetooth 5.0, the connection is stable, and the power-off memory function is supported. The songs and volume played before power-off can be memorized to the current point. Suitable for 2.0, 2.1, or 5.1 speaker amplifier boards. Basic Functions: Supports USB, card switching, previous song, next song, volume adjustment, EQ, play, pause, stop, single repeat, mute, power off, and direct song selection. Redial: Briefly press the pause button continuously during Bluetooth status to redial the last call number. Item Type: Bluetooth 5.0 Audio Decoding Board Module Material: ABS Size: Approx. 10.7 x 2.5 x 2.7 cm/4.2 x 1.0 x 1.1 in Opening: Approx. 8.4 x 2 x 2.7 cm/3.3 x 0.8 x 1.1 in Screw Mounting Hole Distance: Approx. 9.2 cm/3.6 in Bluetooth: Bluetooth 5.0 Working Voltage: DC12V Working Current: 600mA-800mA Output Amplitude: >700mV Remote Control Battery: 1 x Built-in CR2025 (Included) Built-in Battery Capacity: 240mAh Package Includes: 1 x Bluetooth 5.0 Audio Decoding Board Module 1 x Remote Control 1 x Power Cable 2 x Audio Cables 2 x Dust Covers Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!