Galaxy Audio CTSR/85HS Wireless Headset Microphone System

Ideal for either vocals or speech, the CTSR/85HS wireless headset microphone system features 300' range, 920 selectable UHF frequencies, and much more!

The CTS Series wireless systems feature 920 selectable UHF frequencies, IR Sync, Auto Scan, Squelch Adjustment, BNC detachable diversity antennas, LCD display and much, much more. CTS series also features 16 frequency groups with 14 channels per group; 2 groups can be user defined. This system includes the CTSR Receiver, the MBP85 Body Pack Transmitter, the HS-U3BK Headset Microphone, Antennas, 1/4" to 1/4" cable, Power Supply, Rack Ears, and Screws.


- 300' Range
- Auto Scan
- True Diversity
- 920 Selectable UHF Frequencies
- Single/Dual Rack Mount Included
WARNING: Cancer and Reproductive Harm -

Available Frequencies: 920
Frequency Ranges:
CODE D 584 - 607 MHz
CODE J 514 - 537 MHz
Transmitter Output: 5 mW, 10 mW, 20 mW
Band: UHF
Operating Range: Under Typical Conditions 300' (92 m), actual range depends on RF signal absorption, reflection, and interference.
Audio Frequency Response: (+/-3 dB) 60 Hz - 16 Hz
Total Harmonic Distortion: (+/-30 kHz deviation, 1 kHz tone): <1%
Dynamic Range: >90 dB A-weighted
Operating Temperature Range: 14 degrees F to 122 degrees F, battery characteristics may limit this range
Audio Output Level (+/-30kHz deviation 1kHz tone): XLR Connector (into 600 Ohms load) 6 dBV
1/4" Connector (into 3 k Ohms load): 0 dBV
Output Connection: 1 Male XLR Balanced, 1/4" Unbalanced
Output Impedance: XLR Connector 200 Ohms
1/4" Connector: 1 k Ohms
XLR Output: Impedance Balanced
Pin 1: Ground (cable shield)
Pin 2: Audio +
Pin 3: No Audio -
Sensitivity: -102 dBm
Image Rejection: >90 dB
Casing: Metal Chassis EIA STANDARD 1/2 U
Dimensions: 1.7" x "8.3" x 6.3" (45 x 212 x 160 mm) (HxWxD)
Weight: 31.7 oz (900 g)
Power Requirements: 12 V DC at 500 mA, supplied by external power supply


Max Audio Input Level: -6 dBV (-3 gain)
Gain Adjust: -3 dB, 0 dB, +3 dB, +6 dB, +9 dB
RF Output: 5 mW, 10 mW, 20 mW
Input Impedance: 470 k Ohms
Dimensions: 3.85" x 2.51" x 0.90" (98 x 62 x 23 mm) (HxWxD)
Weight: 3.17 oz (90 g)
Power Requirements: 2 "AA" size alkaline or rechargeable batteries
Battery Life: About 12 hours (alkaline)
Dimensions and Weight in Packaging
Band D (584-607 MHz)
Shipping Weight: 5.25 lbs
Shipping Dimensions: 17 x 13 x 3 in
Manufacturer Part Number (MPN): CTSR/85HSD
Band J (514-537 MHz)
Shipping Weight: 5.5 lbs
Shipping Dimensions: 17 x 13 x 3 in
Manufacturer Part Number (MPN): CTSR85HSJ

Consumer Alert

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at

NOTE: None of the wireless systems we carry are capable of violating the FCC guidelines stated above. We are presenting this information as a matter of legally required disclosure.

For support or warranty questions, please contact the manufacturer:
Phone: 800-369-7768 x101

Band D (584-607 MHz)

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