Shure BLX24RE/SM58
- BLX4R Rackmountable Wireless Receiver
- BLX2 Transmitter with SM58 Mic
- One-Touch QuickScan Frequency Selection
- Diversity Antennas
- 300 Range of Operation
- Designed for Ease in Setup
- Up to 14 Hours of Battery Life
- 2x AA Batteries Included
 
BLX4R Rackmount Wireless Receiver
| Output | 1x XLR Output 1x 1/4" (6.35 mm) Output
 | 
| Output Impedance | XLR: 200 Ω 1/4": 50 Ω
 | 
| Audio Output Level | XLR Connector: -20.5 dBV into 100kΩ Load (Reference +/-33 kHz with 1 kHz Tone) 1/4": -13 dBV into 100kΩ Load (Reference +/-33 kHz with 1 kHz Tone)
 | 
| RF Sensitivity | -105 dBm for 12 dB SINAD, Typical | 
| Image Rejection | >50 dB, Typical | 
| Housing | Molded ABS, Steel | 
| Power Requirement | 12 to 15 V DC @ 260 mA, Supplied by External Power Supply (Tip Positive) | 
| Dimensions (H x W x D) | 1.9 x 7.7 x 6.4" (50 x 198 x 163) | 
| Weight | 2.2 lb (998 g) | 
 
BLX2 Handheld Transmitter / SM58 Mic
|
| Audio Input Level | 0 dB Gain: -20 dBV Maximum -10 dB Gain: -10 dBV Maximum
 | 
| Gain Adjustment Range | 10 dB | 
| RF Output | 10 mW, Typical (Varies by Region) | 
| Power Requirement | 2x LR6 AA Batteries, 1.5 V Alkaline | 
| Housing | Molded ABS | 
| Dimensions (Ø x L) | 2.1 x 8.8" (53 x 224 mm) | 
| Weight | 7.7 oz (218 g) | 
|
| Frequency Response | 50 Hz to 15 kHz | 
| Polar Pattern | Cardioid | 
| Output Level | -54.5 dBV/PA (1.85 mV) |