Sanwa RX-391W Receiver

Receiver as supplied with the MX-6.
Model: RX-391W
Frequency: 2.4GHz FHSS-E
Input Voltage: 4.8v ~ 7.4v
Weight: 12.4g
Dimensions: 24.0 x 37.0 x 18.2 mm
Fail Safe Support: Yes - Throttle