BL-8807 pure steel high box version parameters; 1. Appearance; pvc veneer wood grain (heavy hammer has a bright surface of baking varnish); 2. Color classification; pvc; black, white, brown, orange, beige (heavy hammer paint; black, white, red;) 3. Keyboard: 88-key international standard size heavy hammer piano keyboard, also known as hammer keyboard. (Note: piano feel); 4. Keyboard cover: push-pull sliding cover; 5. Speaker; HIFI full-band 3D stereo high-power speaker, 8 ohms 25W*2; 6. Audio motherboard; Dream series 5 series high-end audio source; 7. Tone: 900 (1-900) 8. Rhythm: 700 (1-700) 9. Demonstration Song: 110 (1-110) 10. Display: three-digit digital display 11. Voice Control: Dual Voice, Dual Keyboard, Metronome, Transpose, MP3 Playback 12. Chord Control: Single Finger, Fingered Chords 13. Recording control: powerful program recording function 14. Polyphony; 256; 15. Digital power amplifier; It has the characteristics of anti-interference zero noise, zero distortion, large dynamic range, low frequency shock, etc.; 16. Force control: 16-level touch sensitivity; 17. Three pedals: sustain pedal, soft pedal, sustain pedal 18. Square mouth with MIDI function USB socket function: connect mobile phones, computers, tablets and other smart devices: (can be quickly and easily connected to a computer or other MIDI devices for interaction and creation) 19. Audio input/audio output; 20. Dual headphone jack (6.5mm stereo); 21. The volume button sound volume can be adjusted arbitrarily; 22. Power interface: AC220V/50Hz 12~15V3A 23. Power switch; 24. The package size is 146cm long*51cm wide*44cm high; the packaging and shipping weight is 52kg;