Stereo In Ear Monitor Transmitter A 516 - 558 Mhz B 626 - 662 MHz G 566 - 608 Mhz Main features and specification for Sennheiser ew 300 IEM G3: Sturdy metal housing (transmitter and receiver 42 MHz bandwidth: 1680 tunable UHF frequencies for interference-free reception Enhanced frequency bank system with up to 16 compatible frequencies Ethernet port for connecting to the Wireless Systems Manager (WSM) software for control via computer Ð this delivers a good overview of monitoring and professional data management for multi-channel systems Adaptive diversity for high reception quality Pilot tone squelch for eliminating RF interference when transmitter is turned off Automatic frequency scan feature searches for available frequencies Enhanced AF frequency range Increased range for audio sensitivity Wireless synchronization of receiver parameter from transmitter User-friendly menu operation with more control options Illuminated graphic display Auto-Lock function avoids accidental changing of settings HDX compander for crystal-clear sound Receiver feature battery indicatation in 4 steps Mute function for transmitter HiBoost, adjustable limiter, stereo/focus mode, balance in receiver Contacts for recharging BA 2015 accupack directly in the receiver Wide range of accessories adapts the system to any requirement