The Q7-P800BM Mini Wireless Bell-Mounted Trumpet Microphone System from AMT includes the Q7 transmitter, a P800BM bell-mounted trumpet microphone, and the AMT Q7 Mini receiver that is small enough to fit in your horn case or travel bag. It operates in the 900 MHz frequency range and can be used to capture audio for trumpet in live stage, theater, and rehearsal applications.
The receiver is powered by a standard 12V power supply, or for quicker and more portable setups, it can be powered by AA batteries. The Q7 transmitter is powered by a single AA battery. The antennas are permanently attached to make set up easy. This system offers 100 preset selectable channels and syncs with the Q7 transmitter via infrared.