The Sennheiser SK 100 G3 is a compact, professional-grade bodypack transmitter from the Evolution Wireless G3 (ew G3) series, designed for reliable UHF wireless audio transmission in live sound, broadcast, theater, and presentation applications. Featuring enhanced audio frequency response (55 Hz–18 kHz), it pairs seamlessly with Sennheiser lavalier mics (e.g., ME 2), headsets (e.g., HSP 2), or instrument cables, delivering crystal-clear sound with minimal interference. With 1,680 tunable frequencies across 42 MHz, wireless sync, and up to 8 hours of battery life, it's a workhorse for ENG, musical theater, houses of worship, and multi-channel setups—offering rugged metal construction and easy setup via infrared synchronization.