Sennheiser XSW 1-CI1 B: 614-638 MHz

Features
Compact bodypack transmitter, rugged instrument cable
Antenna-switching diversity reception
Integrated antennas
Automatic frequency management and synchronization via remote channel for easy setup
Selectable UHF frequencies within a large bandwidth
Up to 10 compatible channels

Specs
Dimensions Receiver: approx. 200 x 42 x 127 mm
Bodypack transmitter: approx. 71 x 96 x 28 mm
THD, total harmonic distortion ≤ 0.9%
Weight approx. 340g (receiver), approx. 95g (transmitter)
Signal-to-noise ratio ≥ 103 dBA
RF output power 10 mW
Switching bandwidth up to 24 MHz
Operating time approx. 10 hrs
Modulation Wideband FM
Power supply Receiver: 12 V DC nom. / 300 mA
Transmitter: 2 AA size batteries, 1.5 V
Output voltage 1/4" (6.3 mm) jack socket (unbalanced): +6 dBu, XLR socket (balanced): +12 dBu
Housing Rugged ABS housing
Frequency 8 frequency banks, each with up to 10 factory-preset channels