The Quantum7 Wireless System from AMT includes a Q7 AA powered transmitter with true diversity receiver, rack ears, and extension cables. The Quantum7 transmitter clips on to all AMT microphones that include DCT. You simply need to disconnect the cable from the microphone and plug in the transmitter. With 100 channels to choose from (region dependent), the system is simple to use while providing good quality sound. The receiver is a true diversity design allowing the wireless reception up to approximately 328'. The receiver is constructed with a rugged metal chassis, which includes a 1/4" and XLR output. Additionally it features high-quality transient response, no delay, no background noise, with multi-level narrow band filter technology.