CH99 Handheld Transmitter with Q8, a dynamic microphone capsule designed for the Concert 99 system. It offers up to eight hours of operation from two AA alkaline batteries and provides a variable gain control along with a one-touch mute function. The unit supports a 300-foot line-of-sight range and delivers RF output of 10 mW EIRP. The CH99 uses an integrated Q8 dynamic capsule and measures 260 mm in length with a 54 mm diameter.