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AirLine 77 Fitness

Headset Wireless System

The Samson AirLine 77 AH7 Fitness Headset system is a wireless microphone solution designed to meet the specific demands of fitness instructors and active performers.

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Great for: Fitness, Theater / Production


  • Move Free

    Samson revolutionized wireless with the original AirLine transmitter. Building on this groundbreaking technology, the AH7 Micro Transmitter is mounted directly on the headset. This is unique compared to traditional wireless systems that typically use a belt pack with a wire running from the microphone to the transmitter. The AH7 eliminates these extra components, which can be particularly cumbersome for a fitness instructor, and puts everything you need neatly and comfortably around your head. The transmitter runs for up to eight hours on a single AAA battery.

    Fitness Instructor with Qe headset mic SW1478
  • Qe Mic Capsule

    The Right Mic for Fitness

    The AH7 headset transmitter is mounted on a lightweight, adjustable headset that fits comfortably around your ears and the back of your head, even on those days when you're teaching back-to-back classes for hours. The headset also features the Samson Qe condenser microphone, whose sweat-resistant capsule prevents corrosion from prolonged exposure to moisture. In addition, the microphone's bi-directional pickup pattern reduces background noise, minimizes feedback issues, and effectively rejects signals not directly in front of the microphone capsule.

  • Sound Received

    The CR77 True Diversity receiver provides reliable performance with up to 300' (90m) of wireless operation. Its half-rack housing is light enough to throw in your bag, or it can be permanently installed with a rackmount kit (sold separately). The rear panel features balanced XLR and unbalanced 1/4" outputs allowing flexible connection options.


Flex Your Freedom

The AirLine 77 AH7 Fitness Headset System is the perfect wireless microphone solution for fitness instructors and active performers. Its AH7 micro transmitter mounted on a sweat-resistant Qe fitness headset microphone provides an exciting and motivating experience with reliable performance.

Features / Specs

AirLine 77 AH7 Fitness Headset System

  • Up to 300' (90m) operating range (line-of-sight)
  • Available in multiple channels (region dependent)
  • AC adapter and 1/4" audio cable included

AH7 Fitness Headset Transmitter

  • Fitness headset with mounted micro transmitter (no beltpack or cable required)
  • Qe condenser microphone element with bidirectional pickup pattern
  • Sweat-resistant mic design for high-energy instructors/performers
  • Up to eight hours of battery life using single AAA battery
  • Power/Low battery LED indicator
  • Internal Power switch

CR77 Wireless Receiver

  • True Diversity design minimizes dropouts
  • Mountable half-rack chassis
  • 1/4-wave antennas
  • Multi-segment audio and RF level LED meters
  • Volume and squelch controls
  • Balanced XLR output, unbalanced 1/4" output
  • Mic/Line level output switch


AH7 Transmitter
Operating Power Voltage 1.5V Typical, 1.05V Minimum, 2V Maximum
Current Consumption 60mA Typical
Battery Life  8 Hours (AAA size battery)
RF Output Power (5mW) -4dB Minimum, +3dB Maximum
THD < 2% (1 kHz deviation 15kHz)
Audio Frequency Response  50Hz - 15kHz (±3.5 dB)
Controls  Internal Power Switch
Indicators  Power On (LED Flash), Low Battery (LED On)
CR77 Receiver
Oscillation Type PLL
Antennas 1/4 Wavelength Rod
Indicators Receiver A/B (Green), Power On (Red), AF Level (6 segment), RF Level (6 segment)
Level Control Audio Level Volume, Squelch Level Control
Operating Temperature 0° C / 50° C
Operating Voltage 12 Volts ±10%
Current Consumption 160 mA (all LED lights illuminated)
Sensitivity 18 dBm (@ THD 2%)
Squelch Sensitivity 0 - 40 dBm (Adjustable)
T.H.D. (Overall) 1% Max (@AF 1 kHz, RF 46 dBu)
S/N Ratio (Overall) 90 dB (w/IHF-A Filter)
Residual Noise 90 dBv (w/IHF-A Filter)
AF Frequency Response 50 Hz – 15 kHz (±3 dB overall)
Audio Output Level Unbalanced: 0 dBv; Balanced: -20 dBm (Line), -40 dBm (Mic)
Audio Output Impedance Unbalanced: 5 kΩ; Balanced: 600 Ω

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Type UHF UHF UHF UHF 2.4GHz Digital
Frequencies 1 100 80 100 n/a
Compatible Systems per band 6 8 8 8 2
Mic Capsule Qe Fitness Headset AE50x capsule (integrated into transmitter) Qe Fitness Headset Qe Fitness Headset Qe Fitness Headset
Transmitter Battery 1xAAA / 8 Hours Lithium Ion Rechargeable / 8 Hours Lithium Ion Rechargeable / 8 Hours Lithium Ion Rechargeable / 8 Hours Lithium Ion Rechargeable / 6 Hours
Receiver Type Half-rack Half-rack Half-rack Tabletop USB Stick
Rack-mountable Yes - Rack kit included Yes - Rack kit included Yes - Rack kit included No No
Receiver Output Connections XLR, 1/4" XLR, 1/4" USB, 1/8" XLR, 1/4", 1/8" USB, 1/8"
Antenna Distribution Capable No No Yes No No

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

Warning CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm -

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