WIRELESS FREEDOM, MADE SIMPLE.
Making the jump to wireless should be liberating, not challenging. Shure BLX Wireless Systems combine professional quality sound with simple setup and an intuitive interface for performance you can trust right out of the box. Precision built and available in a variety of handheld, lavalier, instrument and headset configurations, it’s the most accessible way to own the stage.

BLX4R Diversity Receiver
• Up to 12 compatible systems per frequency band (region dependent)
• Microprocessor-controlled internal antenna diversity
• One-touch QuickScan frequency selection quickly locates the best frequency
• 1/4" and XLR audio outputs
• Two color audio status indicator LED

BETA 58A® Handheld Microphone with BLX2 Transmitter
• 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)
• BLX4 or BLX4R Wireless Receiver
• Durable Padded Zipper Case
• Break-resistant Microphone Clip

• Operating Range: 300 ft (91 m) line of sight (actual range depends on RF signal absorption, reflection and interference)
• Available Frequencies: Between 524–865 MHz (available frequencies depend on applicable regulations in country where system used)
• Audio Range: 50–15,000 Hz (dependent on microphone type)
• Transmitter RF Output Power: 10 mW, typical (varies by region)
• Audio Output Connector: XLR and 1/4" (6.3 mm) unbalanced
• Maximum Output Level: -27 dBV (XLR, mic level), -13 dBV (1/4")
• Battery Life: Up to 14 hours
• Dynamic Range: 100 dB A-weighted
• System Distortion: 0.5% THD typical (ref. +/- 38 kHz deviation, 1 kHz tone
• Operating Temperature Range: -18°C (0°F) – +50°C (122°F)
• Power Requirements: BLX1, BLX2: 2 AA alkaline or rechargeable batteries
• BLX4R: 12–18 V DC at 260 mA, supplied by external power supply

Note: Performance may vary depending on country regulations and operating environment.

• Note: Performance may vary depending on country regulations and operating environment.