KR-3808PRO Digital Karaoke Receiver with Key Control, 21.00 X 21.00 X 23.00. 23 x 21 x 21 inches. 2 AA batteries required. 21.00 x 21.00 x 23.00. 150W + 150W MAXIMUM POWER. DIGITAL ECHO WITH REPEAT AND DELAY CONTROLS TO ADD DEPTH AND SPACE TO VOCALS. MICROPHONE INPUTS WITH INDIVIDUAL VOLUME CONTROLS. FOR MORE INFORMATION KINDLY REFER TO THE USER MANUAL IN PRODUCT DESCRIPTION BELOW. VOCOPRO KR-3808 PRO Karaoke Equipment. As well as three microphones at once for a complete vocal experience. There is also a handy 1/8 audio input right on the front panel to connect your Mp3 player or laptop. Digital Key Control, echo effects and mixing controls provide the ability to enhance music and vocals to improve your vocal performance. The KR-3808 PRO combines home entertainment capabilities with professional features providing a powerful, yet easy to use system for any vocal setup. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.