Samson Airline Micro ESm Micro Earset Wireless System, K 477-492 MHz

The Samson AirLine Micro Earset Wireless System is designed for high-energy performers who need complete freedom of movement without sacrificing professional audio quality. Whether you’re a fitness instructor, stage performer, dancer, or presenter, this compact and convenient system delivers crystal-clear sound in a durable and hands-free format. Featuring a unique, integrated transmitter and earset mic design, the AirLine Micro eliminates bulky bodypacks and cables, allowing you to move naturally during any performance or presentation.

Operating in the K Band frequency range (477.525 – 492.425 MHz), the AirLine Micro system offers 100 selectable channels and a reliable working range of up to 300 feet (line of sight). The system’s AR99m receiver includes balanced and unbalanced audio outputs for maximum versatility, as well as clear LED indicators for power, system readiness, and channel info. The integrated lithium-ion batteries in both the AH100 transmitter and AR99m receiver provide extended operation time and are easily rechargeable for convenient all-day use.

The AH100 earset transmitter features five volume adjustment steps, MEMS microphone technology, and an ultra-lightweight design at only 0.8 oz. Despite its compact form, the unit delivers powerful RF transmission and crisp audio with less than 1% total harmonic distortion. The AR99m receiver includes selectable mic/line level output, dual 1/4 wavelength rod antennas for enhanced signal clarity, and both XLR and 1/4" output connections. With superior selectivity and signal-to-noise performance, the AirLine Micro system is built for demanding wireless audio environments.

Key Features

• Ultra-compact, all-in-one earset transmitter with built-in microphone
• Operates in K Band (477.525 – 492.425 MHz) with 100 selectable channels
• 300 ft working range (line of sight)
• Rechargeable lithium-ion battery with up to 10 hours of use per charge
• AR99m receiver with balanced XLR, unbalanced 1/4" and 1/8" outputs
• Clear system indicators for power, readiness, and channel display
• Lightweight design ideal for fitness instructors, stage performers, and presenters

Technical Specifications

System:
Operating Frequency (K Band): 477.525 – 492.425 MHz
Number of Channels: 100
Working Range: 300 ft (line of sight)
Audio Frequency Response: 100 Hz – 15 kHz
T.H.D. (Overall): < 1% (@AF 1 kHz, RF 46 dBu)

AH100 Transmitter:
Audio Input Level: -110 dBv ~ 0 dBv
Volume Adjustment Steps: 5
RF Transmitter Output: 10 mW ERP
Power Requirements: Internal lithium-ion rechargeable battery
Battery Life: ~10 hours
Dimensions: 6.7" x 0.6" x 2.3"
Weight: 0.8 oz

AR99m Receiver:
Audio Output Connectors: Balanced XLR, Unbalanced 1/4", Unbalanced 1/8"
Audio Output Level (Typical): -30 dBv (Mic), -10 dBv (Line)
Audio Output Impedance: Unbalanced 600 Ohms
AF Frequency Response: 50 Hz – 15 kHz
Antennas: Two 1/4 Wavelength Rod
Selectivity: ±150 kHz (AF Out Ratio -60 dB)
S/N Ratio (Overall): 90 dB (with IHF-A Filter)
Sensitivity: 18 dBu (@ THD 2%)
Power Requirements: AC Adaptor
Indicators: Power On, Channel Number, System Ready
Dimensions: 4.3" x 3.7" x 1.5"
Weight: 0.42 lbs

What’s Included:
(1) AH100 Earset Transmitter
(1) AR99m Receiver
(1) AC Adaptor
(1) Carrying Case
(1) USB Charging Cable
(1) User Manual