Samson Airline 77 UHF Wireless systems are an unbeatable combination. Samson Concert 77 UHF True Diversity Half-Rack Receivers matched up with Samson's incredible Airline Series mini transmitters give you 'belt-pack-free' mobility at new low prices. Ultra-light, ultra-compact, and incredibly efficient, Airline Series transmitters provide flawless wireless performance for 12 hours on a single AAA battery.
For 2 decades Samson has led the world in wireless technology for musicians. Their philosophy: Make cutting-edge technology available to everyone. No system has ever done it like this before: the revolutionary Airline Wireless Systems -- with no belt packs -- at prices everyone can afford.
CR77 Receiver
The heart of Airline 77 is the new CR77 Receiver. This true-diversity half-rack unit with PLL frequency control works with all of the Airline transmitters. Rugged, durable and crystal clear with incredible range. UHF (Ultra High Frequency) means clearer frequencies with less interference.
AH1 Wind Instrument Transmitter
Brass, woodwind, any kind of instrument can go completely wireless now with Airline 77. When you still have a wire running from your horn to your belt pack, you might as well not be wireless. Not a problem with Airline wireless systems. The whole system clips onto your horn, no more wires. HM40 High quality condenser element for any instrument. AMT Roaming 1 Used by the biggest names in jazz. A stellar performer, the Samson/ AMT system provides recording-studio quality audio.
HM40 Microphone
This mini condenser is designed for horns, rich and clear, focused, with the abilty to handle serious SPL.
HM40 Features:
Designed for wind instruments
High output miniature condenser mic element
Cardioid pickup pattern
Surdy clip and flexible goose neck
Excellent for live performance and recording
Technical Info
Channel Frequencies
Channel U1: 801.375 MHz
Channel U2: 801.875 MHz
Channel U3: 803.125 MHz
Channel U4: 803.750 MHz
Channel U5: 804.500 MHz
Channel U6: 804.750 MHz
Receiver (CR77)
Type of Reception: Single Superheterodyne, True Diversity
Oscillation Type: Synthesized PLL Frequency Control
D-emphasis: 50 μsec
IF Frequency: 10.7 MHz
Antenna: 1/4 Wavelength Rod
In/Out: DC Inlet, Balanced Output, Unbalanced Output
Display (LED): Antenna A/B (Green), Power On (Red), Peak (Yellow), RF Level (5 pc)
Level Controls: Volume, Squelch
Operating Voltage: 12 Volts + 10 %
Current Consumption: 160 mA (at all LED lights)
Receiving Frequency Range: 801 - 805 MHz
Sensitivity: 18 dBμ @ THD 2%
Squelch Sensitivity: 0 - 40 dBμ (Adjustable)
Selectivity: ± 150 kHz (AF Out Ratio -60 dB)
S/N Ratio (Overall): 90 dB (w/ IHF-A fi lter)
Residual Noise: 90 dBv (w/ IHF-A fi lter)
Band Mute: ± 50 kHz / ± 100 kHz (RF IN: 46 dBu EMF)
AF Frequency Response: 50 Hz - 15 kHz (± 3 dB overall)
Audio Output Level - Unbalanced: 0 dBv
Audio Output Level - Balanced: -20 dBm (Line), -40 dBm (Mic) Switch
Selectable
Audio Output Impedance/Unbalanced: 5 k Ohms
Audio Output Impedance/Balanced: 600 Ohms
Dimensions: 8.5 in. (w) x 1.75 in. (h) x 4.6 in.(d) 216 mm (w) x 44 mm (h) x 116 mm (d)
Weight: .75 lb / 340 g
4 payments of 
Because this item is used at your mouth or ear, it cannot be returned once opened due to health reasons. 
