In direct line-of-sight, the range should be even better according to Sennheiser. SAY GOODBYE TO INTERFERENCE: The Sennheiser AVX Combo Set operates on a 1.9 GHz frequency range, offering a very clean and crisp sound. Sennheiser say that the AVX has a range of at least 30 meters in normal video production conditions where there may be obstructions between the transmitter and the receiver. The EKP AVX is the receiver for the AVX wireless microphone system. Buy Sennheiser SK AVX Digital Bodypack Transmitter (1.9 GHz) featuring For Use with AVX Wireless Mic System, Lightweight, Compact Metal Housing, Automatic Mic Level Control, Mute Switch, 15-Hr Rechargeable Battery + USB Power, 98' Range. Review Sennheiser SK AVX Sennheiser AVX-835 SET Wireless Handheld System for Video AVX 1.9GHz Digital Wireless Microphone System with Handheld Microphone Transmitter, Direct-input Camera Receiver, and … The 1.9GHz frequency range allows the system to stay out of range … It features self configuring digital transmission which eliminates time-consuming radio frequency setup. Range. The ultra compact receiver …