Sennheiser SK100-G4 Wireless Bodypack Transmitter

The SK 100 G4 is the bodypack transmitter from Sennheiser's evolution wireless G4 100 series, the belt-worn half of a wireless rig for lavaliers, headworn mics, and instruments. Its 1/8-inch locking EW input accepts any of Sennheiser's clip-on, headset, or instrument cables, and the front-panel display plus a new linking function let you allocate frequencies to a whole set of receivers quickly.

It runs on two AA batteries or the BA 2015 rechargeable pack for about 8 hours, tunes across up to 42 MHz of switching bandwidth with 1,680 frequencies in 25 kHz steps, and puts out up to 30 mW on wideband FM. The transmitter is offered in the A (516-558 MHz), A1 (470-516 MHz), and G (566-608 MHz) frequency ranges.