
Shure BLX2/SM58=-H11 Handheld Transmitter with SM58 Microphone (H11 Frequency Band)

Expected June 30, 2025
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Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.
Shure BLX2/SM58 Features:
- Integrated microphone capsule design.
- Lightweight, rugged construction.
- -10 dB gain attenuation.
- Color ID caps (available separately).
- Power and battery status LED.
- Adjustable gain control.
- Quick & easy frequency matching.
- 2 AA batteries (included) provide up to 14 hours of continuous use.
- 300 feet (91 m) operating range (line of sight.)
Shure BLX2/SM58 Product Specifications:
System Specifications
Working Range: 91 m (300 ft) Line of Sight (Actual range depends on RF signal absorption, reflection and interference.)
Audio Frequency Response: 50 to 15,000 Hz Note: Dependent on microphone type
Total Harmonic Distortion (Ref. ±33 kHz deviation with 1 kHz tone): 0.5%, typical
Dynamic Range: 100 dB, A-weighted, typical
Operating Temperature: -18°C (0°F) to 57°C (135°F) Note: Battery characteristics may limit this range.
Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low impedance output) and the tip of the high impedance 1/4-inch output.
All Specifications are subject to change. Performance may vary depending on country regulations and operating environment.
BLX2 Handheld Transmitter
Audio Input Level gain 0dB: -20 dBV maximum / -10dB: -10 dBV maximum
Gain Adjustment Range: 10 dB
RF Transmitter Output: 10 mW, typical varies by region
Dimensions: 224 mm X 53 mm dia. (8 7/8 X 2 1/8 in.)
Weight: 218 g (7.7 oz.) (without batteries)
Housing: Molded ABS
Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
Battery Life: up to 14 hours (alkaline)
Each BLX2/SM58 Retail Box Includes:
(1) Shure BLX2/SM58 Handheld Transmitter with SM58 Capsule