One-click elimination of for original-sound, reverb/accompaniment adjustment, pitch change mode, magic sound mode. 10-meter 360° surround sound quality KTV sound effect Equipped with double speakers large sound cavity, highlighting the three-dimensional and layered sound quality The human voice is clear and penetrating, enhancing the human voice frequency, the sound exceeds 120 decibels, covering about 500 square meters, three-dimensional surround. Wireless microphones make karaoke easier. Long-range transmission, strong radio sensitivity, low distortion, strong anti-interference ability, and smoother sound. You can also sing on your mobile phone and TV. you can hold a concert at home. Enjoy the fun of KTV and easily create your own entertainment venue at home. Colorful light show to fill the atmosphere. Up to multiple LED lamp beads, a variety of RGB singing atmosphere lighting effects, dreamy like shooting stars in the dark night, rhythm with the music, filling the atmosphere of the music. Name:Karaoke Machine Transmission distance:10 meters Battery capacity:1200MA Battery voltage:DC3.3V-DC4.2V Bluetooth version:5.3 Speaker size:52 mm Output power:5W Colour & Number of microphones:B:Black,1Mic Material:ABS Package Contents: 1 * Speaker 1 * Microphones 1 * Charging Cable 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.