- Sennheiser XSW IEM Set E-Band, XS Wireless UHF In-Ear System; frequency range 823.2 - 832.8 MHz; transmit power 30 mW; frequency range 45 Hz - 15,000 Hz; switching bandwidth up to 24 MHz; transmitter (XSW IEM SR) and bodypack receiver (XSW IEM EK); connections: Transmitter (6.3 mm headphone output, 2x combo input jacks), receiver (3.5 mm mini-jack headphone output); EQ; limiter; frequency presets; focus mode; infrared sync; operating time: approx. 6 hrs. (depending on volume setting); Included in delivery: Sennheiser IE 4 in-ear headphones, XSW rackmount kit, power supply (NT 12-5 CW), 1x BNC omnidirectional antenna, 2x AA batteries; Dimensions (WxDxH): (transmitter): 200 x 128 x 42 mm, (receiver): 95 x 70 x 26 mm; Weight: (transmitter) 700g, (receiver) 110g