Futaba R2104GF 4-Channel S-FHSS Receiver
-Power Requirement: 3.5V - 8.4V shared with servos
-Voltage: 3.5V - 8.4V
-Dimensions: 1.54 x 1.02 x 0.39" (39 x 26 x 10mm)
-Weight: 0.28oz (8g)
-Antenna Length: 8"