The Sennheiser SKM300-835 G3 gives you both power and control with features such as a convenient menu interface, vivid graphic display, and programmable mute button. You can program the mute button to support push-to-talk, push-to-mute, and more if you choose. Designed for absolute reliability and impressive sound, this hand-held transmitter/microphone combination makes it easy to concentrate on what is important: your own performance. Perfect for the tourguide or interpreter - the programmable MUTE button is a key feature for ease of operation. Superb quality audio delivers the very best sound to your listeners; especially important in challenging environments and demanding applications like simultansoues translation. Offers up to 9 simultaneous channels (ch65 822-830 MHz, hire licence required) linked to EK 1039-DW receivers, in addition to 4 in licence-free ch70 (863-865MHz). FEATURES Dynamic microphone capsule with impressive sound User-friendly menu operation with back-lit graphic display Programmable Mute function Sturdy metal housing Enhanced frequency bank system with up to 24 compatible frequencies Pilot tone squelch for eliminating RF interference when transmitter is turned off Enhanced AF frequency range Wireless synchronization via infrared interface from receiver Auto-Lock function avoids accidental changing of settings HDX compander for crystal-clear sound Battery indicatation in 4 steps, also shown on receiver display Contacts for recharging BA 2015 accupack directly in the transmitter