Description
The BLX24/B58-H9 Handheld Wireless System is part of the BLX wireless systems family.
Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.
Includes BLX4 single-channel receiver, BLX2/BETA58A handheld transmitter, microphone clip, power supply, 2 AA batteries, and user guide.
Features:
- Integrated microphone capsule design
- Lightweight, rugged construction
- -10 dB gain attenuation
- Color ID caps (available separately)
Specifications:
- General
- Working Range: 300 ft Line of Sight (Actual range depends on RF signal absorption, reflection and interference)
- Audio Frequency Response: 50 to 15,000 Hz
- Total Harmonic Distortion: Ref. ±33 kHz deviation with 1 kHz tone; 0.5%, typical
- Dynamic Range: 100 dB, A-weighted, typical
- Operating Temperature: 0° F to 135° F (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.
- Frequency: 512 – 542 MHz
Wireless Receiver
- Output Impedance: XLR connector: 200 Ω; 1/4″ connector: 50 Ω
- Audio Output Level (Ref. ±33 kHz deviation with 1 kHz tone): XLR connector: -27 dBV (into 100 kΩ load); 1/4″ connector: -13 dBV (into 100 kΩ load)
- RF Sensitivity: -105 dBm for 12 dB SINAD, typical
- Image Rejection: >50 dB, typical
- Dimensions (H x W x D): 1.57 X 7.40 X 4.05 Inch
- Weight: 8.5 oz.
- Housing: Molded ABS
- Power Requirements: 12-15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)
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: 8 7/8 X 2 1/8 inch
- Weight: 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)


Happy Member –
It’s fine. Not great, not terrible. Does what I need it to do most of the time.
Virginia Jackson –
I purchased this to replace my old one and works great! Would be 5 stars but the color was slightly different than pictured.
D. S. (verified owner) –
A+ product! Would give it 10 stars if I could. Definitely recommending this to everyone I know. Happy with my purchase.
Dennis –
Using this based on a recommendation and great product overall. The only thing is the instructions could be clearer.
Stephen D. (verified owner) –
Middle of the road. The Shure BLX24-B58-H9 Handheld Wireless Mic System with BETA58 – H9 512 – 542 MHz wasn’t what I hoped for. It works but I’ve had better products in this category.
E. P. –
Just received this for myself and best bang for your buck. This product offers incredible value compared to competitors. Exactly what I needed.
Happy User (verified owner) –
The Shure BLX24-B58-H9 Handheld Wireless Mic System with BETA58 – H9 512 – 542 MHz works perfectly. Have been using this as a gift and some aspects are good, others need work. An average experience overall.