AKG IVM 4500 Band 9, UHF InEar System - SPR 4500 diversity receiver, SST 4500 9.5" transmitter and IP2 earphones, built-in DBX compressor/limiter, roomsimulation and low cut filter, LCD display (frequency, channel, group, compressor and limiter), input level and battery power display on receiver, adjustable HF power 10, 20 and 50 mW, auto set-up, cue function for fast switching between channels, powered via 2x AA batteries or BP4000 rechargeable battery pack, 1x BNC antenna, 2x balanced XLR/Jack combi inputs. 2x loop out, Includes power supply, 1x IP2 earphones, 2x 1.5V batteries, rack-kit and antenna, BAND 9 (600,1 - 605,9 und 614,1- 630,5 MHz). Please note: Due to every country having different regulations, you may need to contact your local licensing authorities before using a wireless system.