Shure BLX188E/SM35 – Dual Wireless Headset Microphone System

Overview:

The BLX188/SM35 Wireless Dual Headset System with two SM35 features a durable, industry-standard microphone cartridge in a comfortable headset design for hands-free performance combined with simple setup and an intuitive interface for performance you can trust.

BLX88 Dual Wireless Receiver for BLX Wireless System
SPECIFICATIONS
SYSTEM
Working Range
91 m (300 ft) Line of Sight

Note: 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.

BLX1
Audio Input Level
max -16 dBV maximum
min (0 dB) +10 dBV maximum
Gain Adjustment Range
26 dB

Input Impedance
1 M

RF Transmitter Output
10 mW, typical

varies by region

Dimensions
4.33 in. X 2.52 in. X 0.83 in. (110 mm X 64 mm X 21 mm) H x W x D

Weight
2.6 oz. (75 g), without batteries

Housing
Molded ABS

Power Requirements
2 LR6 AA batteries, 1.5 V, alkaline

Battery Life
up to 14 hours (alkaline)

BLX88
Output Impedance
XLR connector 200
6.35 mm (1/4″) connector 50
Audio Output Level
Ref. 33 kHz deviation with 1 kHz tone

XLR connector -27 dBV (into 100 k load)
6.35 mm (1/4″) connector -13 dBV (into 100 k load)
RF Sensitivity
-105 dBm for 12 dB SINAD, typical

Image Rejection

50 dB, typical

Dimensions
1.50 in. X 12.13 in. X 3.98in. (38 mm X 308 mm X 101 mm) H x W x D

Weight
15.1 oz. (429 g)

Housing
Molded ABS

Power Requirements
12-15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive)

What’s in the box
1 x BLX88 Dual Wireless Receiver with Power supply
2 x SM35 Fitness Microphone
2 x BLX1 Bodypack Transmitter
2 x AA Batteries