1. Ultra volume: 23x24mm;

2. Excellent noise suppression, in the case without the input of the audio, ears are affixed to the horn can not hear any noise;

3. Dual channel stereo, 5V power supply can output 5W+5W power, can directly drive 4ohm, 8ohm small speakers, output power, energy, good quality, with left and right channel volume adjustment;

4. Unique D class digital power board without LC filtering, can be directly used by the computer USB power supply;

5. Double panel wiring, properly solve the problem caused by the ground potential balance and channel crosstalk;

6. Ultra micro design, can be easily placed in a variety of digital products in the interior of a small space, high efficiency;

7. All adopt the whole plate welding machine, the welding quality of non manual soldering than;

8. Rated working voltage: 2.5~5V, max. working voltage: 5.5V.