Waoclowr DecoderMP3 Playback Board Jack 3.5 mm Connection Control size connection, clear control, compact design, fits in small spaces.

With the micro USB power supply interface, the power supply can be done via a mobile power supply or USB charger via the mobile phone data cable. It can also be used a 3.7V lithium battery and a USB 5V power supply. Support TF card (mobile phone memory card), U disk playback mode; welding with horn clamp is not required, which is convenient for wiring; Modular design is easy to change. Super sound quality, built-in 2W mono amplifier (5V power supply up to 3W) connected directly to the speaker (recommended with 4 ohm 3W speaker), gold-plated 3.5mm headphone jack can be connected to headphones or external audio. Product Description 1. Supports MP3 format, automatic playback when turned on, red LED indicator is updated when playing; 2. Supports playback mode U disk (tested 32G), TF card (tested 16G); turn on standard TF card mode. If no TF card automatically switches to U disk and both devices are installed, you can set the playback mode manually. Please refer to the most important operating instructions. 3. The buttons can adjust the up and down lane switching, volume +, pause/play, mode switching. Information can be found in the instruction manual of the button. 4. You can press the button to set the cycle "single/full title". The default setting is the full cycle when switched on. Press the "Repeat" button to change the cycle mode