The XSw IEM wireless eavesdropper is a reliable, versatile system with simple operation. It is designed for beginning musicians, allowing them to quickly and easily set up a wireless connection in the professional UHF range. Despite its inclusion in the basic category, it provides all the full professional performance of a Sennheiser wireless system.Features:Complete IEM system of the entry-level professional rangeFast and reliable connection in the professional UHF rangeAdjustable audio modesCustom signal mixing capabilityAdditional functions - equalizer, limiterSimple tuning and detailed manual adjustmentInfrared information transfer between receiver and transmitterPackage contents:1 rack-mount SR-XSw IEM transmitter1 EK-XSw IEM handheld receiver1 IE 4 headset1 rack installation kit1 transmitting antenna1 power supply NT 12-5 CW2x AA batteriesInstructions for useTechnical dataSystemRF bandwidth: 24 MHzRF frequency range: 476-500 MHzSignal to Noise Ratio: > 88 dBHarmonic Distortion (THD): < 0.9%Frequency range: 45 ... 15,000 HzTransmitterRF transmit power: 30 mWNF input sensitivity: -21 ... 0 dBNF connectors: 2x XLR3-F/jack 6.3 mmAntennas: 1x BNC, rod antennaReceiverOutput level (headphones): 2x 1.25 V/16 OhmPower supply: 2x AA batteriesBattery life: up to 6 hoursWeight: 110 g