User Manual

Shure Incorporated
21/24
Battery Life
up to 14 hours (alkaline)
BLX4R
BLX4R
Output Impedance
XLR connector 200 Ω
6.35 mm (1/4") connector 50 Ω
Audio Output Level
Ref. ±33 kHz deviation with 1 kHz tone
XLR connector –20.5 dBV (into 100 kΩ load)
6.35 mm (1/4") connector –13 dBV (into 100 kΩ load)
RF Sensitivity
-105 dBm for 12 dB SINAD, typical
Image Rejection
>50 dB, typical
Dimensions
1.65 in. X 7.80 in.X 6.42 in. (42 mm X 198 mm X 163 mm) H x W x D
Weight
without antennas
2.2 lbs (998 g)
Housing
Molded ABS, steel
Power Requirements
12–15 V DC @ 260 mA, supplied by external power supply (tip positive)