System 20 PRO 4-channel receiver.
Features
 
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		Half-rack chassis capable of receiving up to four transmitters 
	
 
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		Each receiver channel can be paired with up to four transmitters, allowing users to instantly switch between different transmitter configurations 
	
 
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		Switch between Standard (10 channels) and HD (20 channels) modes 
	
 
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		Receiver units can be docked in the chassis or mounted remotely (up to 328 feet away) via Ethernet cable for added versatility 
	
 
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		Up to five chassis can be linked and used simultaneously 
	
 
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		Monitor transmitter status, audio level, remaining battery time, and other information in A-T Wireless Manager 
	
 
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		Auto-lock function prevents unintended operations 
	
 
 
  Overall System
Operating Frequencies	2,402~2,480MHz
Dynamic Range	120dB (A-weighted), typical
Total Harmonic Distortion	< 0.05%, typical
Maximum Simultaneous Use (recommended)	Standard: 10 channels
HD mode: 20 channels
It depends on the region and environment.
System Frequency Response	20 to 20,000Hz
Varies depending on the microphone to be installed.
Delay	Standard: 2.8ms
HD mode: 6.7ms
Audio Sampling Rate	Standard: 24bit/48kHz
HD mode: 24bit/48kHz
Encryption Method	AES128