The SingAndHear-Quad All-In-One Wireless Microphone / Wireless In-Ear Receiver System from VocoPro is an innovative wireless mic/monitor system that combines four wireless microphones, four wireless plug-in receivers, four wireless in-ear receivers with belt clips for monitoring, and four IE-9 wired in-ear headphones. This system can be used to send each handheld wireless microphone's signal simultaneously to the corresponding wireless in-ear receiver and wireless mic receiver without the need for an additional monitor transmitter to connect them together.

What you sing is what you hear. The tap and sync function helps to synchronize all commander receivers within RF range. For example, you can record your performance with an optional Commander USB receiver to a Windows or Mac computer or even to an iPhone (requires lightning to USB camera adapter sold separately). You can run up to four transmitters to unlimited receivers at the same time. In addition, each transmitter has 20 PLL frequencies that can be switched on-the-fly to avoid interference with no re-syncing required.