ATW-R900a receiver and ATW-T901a body-pack transmitter with AT-GcW guitar/instrument input cable. 
System 9 is a four-channel  frequency agile wireless system. Up to four systems can be used simultaneously on different channels.
FEATURES
- Dipole Antennas
 
- RF/Peak Indicators
 
- Channel Selector
 
- Squelch Control
 
- Volume Control
 
- Unbalanced 1/4" Output Connector
 
- Balanced XLR Output Connector
 
- Stackable Design
 
- Soft-touch Power/Mute Switch
 
- Multi-color Battery/Power Indicator
 
- Separate Instrument/Mic Trim Controls
 
- Channel Selector
 
- AA Battery Operation
 
Change your system by adding an AT-cW Microphone or Cable
 
| Overall System | 
| Operating Frequencies | 
VHF highband, 169 MHz to 172 MHz | 
| Modulation Mode | 
FM | 
| Maximum Deviation | 
+/-10 kHz | 
| Frequency Response | 
80 Hz to 13 kHz | 
| Operating Range | 
200' (60 m) typical  Open range environment with no interfering signals
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