Introducing the BMB Dep 1500KU Digital Echo Processor Key Karaoke Mixing Control Amplifier. This top-of-the-line karaoke mixer boasts a sleek design and powerful features that will take your karaoke experience to the next level. With key control and a digital echo processor, you can perfect your pitch and gain a competitive edge over your friends. This mixer is perfect for any karaoke enthusiast, whether you’re a beginner or a pro. The BMB brand is known for its high-quality musical instruments and gear, and this karaoke mixer is no exception. It’s ideal for use in musical performances and parties, and is sure to be a hit with anyone who loves to sing.