This is the Airtronics RX-381 2.4GHz FHSS-3 3 Channel Receiver, and is intended for use with the M11X, EXZES X, MT-4, MX-3X, GEMINI X and any other Airtronics FHSS-3 compatible surface transmitter. This digital high response Airtronics receiver is slightly lighter than the receiver included with the M11X, and over 1.5g lighter than the receiver found with the MT-4 radio system.
Frequency: 2.4GHz FHSS-3
Input Voltage: 4.8V-7.4V
Weight: 0.28oz (8.0g)
Dimensions: 1.48x0.97x0.56" (37.5x24.7x14.1mm)
Fail Safe Limit: 3.8V Default / 3.5-5.0V Adjustable