Key benefits Compact and lightweight design: 108 x 25 mm and 40 g single unit, easy to integrate into small speakers, DIY kits, or compact audio projects. Strong stereo performance: 6 W total power with true stereo twochannel output (2 x 3 W) for clear, balanced sound. Reliable wireless connectivity: Bluetooth version 5.0 for stable streaming and quick pairing with devices. Versatile compatibility and decoding: can be connected directly to speakers with power amplifier and decoding functions. Supports MP3/WMA/WAV/APE/FLAC formats for broad compatibility. Broad main functions and inputs: MP3/USB/TF/LINE IN/FM/BLUETOOTH/remote control/DC12V. Functionally versatile for various sources and control methods. Flexible playback options: supports folder playback, call handling, and recording (external recording). Recording is operational only in TF mode or USB mode. Poweroff memory for convenience: remembers last mode and volume after power down. Power and supply: powered by 5V with current requirements 0.5–2A. Listed as DC12V among main functions for potential additional compatibility. Technical specifications (highlights) Bluetooth version: 5.0 Output power: 6W total (2 x 3W) Size: 108 x 25 mm Weight: 40 g Supported formats: MP3, WMA, WAV, APE, FLAC Main functions: MP3, USB, TF, LINE IN, FM, BLUETOOTH, remote control, DC12V Features: folder playback, call support, recording (external recording; recording only in TF/USB mode) Poweroff memory: remembers last mode and volume Power supply: 5V, current 0.5–2A Use scenarios Home stereo upgrade: attach to powered or amplified speakers to expand music playback from Bluetooth devices, USB drives, or TF cards. Use LINE IN for wired audio, FM radio for broadcasts, and remote control for convenient operation. DIY compact speaker project: integrate into a small enclosure or DIY speaker box to deliver stereo sound from a compact module. Ideal for discreet audio solutions in shelves, desks, or projects where space is at a , with easy access to USB/TF playback and Bluetooth streaming. Small office, workshop, or hobby room audio: create a simple multimedia station with Bluetooth streaming, USB/TF playback from a flash drive or SD card, and FM radio for incidental listening. Poweroff memory helps resume the previous source and volume after interruptions.