Fangrui Product Details 1. Professional Portable Digital Karaoke Machine Echo Mixer System, Random Color Delivery 2. Features: 3. 2 Micphone Inputs, Video Input And Sound Output For Video Signal 4. Echo Effect And 2 Microphone Control 5. With Stable Quality, Portable, Artistic, Small And Exquisite. 6. Suitable For Company, Stage, Home, Ktv Rooms, Etc. 7. Connect The Front Of Amplifier To Input And Power Control The Host. 8. Descriptions: 9. Dual Microphone Inputs, Video Input And Sound Output For Video Signal, Volume Can Be Adjusted Individually. 10. Reverberation Delay Function And Audio Inputsoutputs For Leftright Channel Volume Frequency Regulation. 11. Volume Frequency Regulation. 12. Specifications: 13. Power Supply: Adapter 110-240v 14. Working Voltage: 9v-12v 15. Total Harmonic Distortion:<0. @ 1khz 16. Item Size: 14x8.5x4cm 17. Package Size: 19.5x16.5x6cm 18. Package Included: 19. 1 X Karaoke Echo Sound Mixer 20. 1 X Power Adapter Us Plug Or Eu Plug 21. 1 Set Of Audio Cable 22. 1 Set Of Video Cable 23. Notes: 24. Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item. We Guarantee The Style Is The Same As Shown In The Pictures. 25. Due To Personal Measurement Technique Is Different, There May Be 1-3 Cm Error Of The Physical.thank You!