1. Built-in MP3 player: equipped with standard USB and SD card input interface;

15. Forced wind cooling to the rear, heat efficient, to ensure long time stable operation of the machine;

2. Adopt fully symmetric microphone amplifying circuit, which can amplify weak signals without losing their authenticity to ensure true restoration;

3. Mitsubishi M65831 digital reverberation delay processor is adopted, and the reverberation sound has enough depth and three-dimensional sense of space;

4. 100% original imported Toshiba power tube for after-stage amplification, stable work, natural and soft sound;