Highlights:

1. Superior sound quality, onboard 2W mono amplifier (5V supply up to 3W) directly connected to the speaker (Recommended with 4? 3W speakers), 3.5mm gold plated headphone jack can connect headphones or external stereo.

2. With MicroUSB power connector, power supply or USB mobile charger powered via phone lines, but also can be 3.7V lithium battery, USB 5V power supply.

3. Support TF card (memory card inside the phone), U disk playback mode.

4. No welding with speaker terminals for easy wiring.

5. Module designed to facilitate modification.

Product Overview:

1. Support MP3 format, the power automatically play when playing red LED status updates.

2. U disk support (tested 32G), TF card (tested 16G) Play mode; TF card power-on default mode, if there is no automatic jump TF card U disk mode, and both devices have installed, you can manually set the playback mode, details key operating instructions.

3. The buttons can be adjusted up and down the track switch, volume + -, pause / play, mode switching, details key operating instructions.

4. Key Settings "singles / Full Song" cycle, the default power cycle the whole song, press "Repeat" button replacement cycle mode

Key Instructions:"Prev / V--" button: "Press" for switching "on a" song, "long press" for "volume Decrease"

"Next / v ++" button: "Press" for switching "next song" Song, "long press" for "incremental volume"

"P / P / Mode" button: "Press" for the "Play / Pause" Switch, "long press" for U disk, TF card "pattern"

"Repeat" button: "Press", for "single / full song" Cycle (no long press function)

Note: a "long press" approximately 2S

2. If you use U disk mode, it is recommended 5V power supply, and some U disk does not support 3.7V power supply.

Product Specifications:

Power range: 3.7 ~ 5.5V

Size: 45mm * 36mm

Exquisite double board design, a large copper, stable and reliable.