This is the AR610 6-Channel DSMX Aircraft Receiver. The full-range Spektrum AR610 receiver combines the speed and precision of DSMX control with the signal security of an active amplified antenna. This antenna enables the receiver to "see around" reflective materials on a model, avoid antenna polarization blind spots and pick out its transmitter's signal with remarkable clarity. All of this is complemented by SmartSafe failsafe protection and the security of QuickConnect technology that provides lightning fast reconnection in the event of low voltage brownout.

The AR610 receiver is compatible with Spektrum telemetry modules and the Flight Log signal monitor (sold separately). 

Features:

• Full-range DSMX receiver
• Antenna is amplified for greater signal clarity
• Flight log and telemetry compatible
• 2048 resolution
• 6 Channel sport aircraft receiver for parkflyers to .90 sized sport planes.

Specifications: 
Type: Air 
# of Channels: 6 
Modulation: DSM2/DSMX 
Length: 1.44 in (36.6mm) 
Width: 1.05 in (26.7mm) 
Height: 0.5 in (12.7mm) 
Weight: 0.3 oz (9 g) 
Antenna Length: 190mm 
Band: 2.4GHz 
Input Voltage Range: 3.5V to 9.6V 
Resolution: 2048