Futaba R7008SB 18 Channel FASSTest S-Bus2 Receiver Futaba R7008SB 2.4GHz FASSTest 8+ Channel High-Voltage Receiver for the 18MZ Radio System. FEATURES: Bi-directional communication with a FASSTest Futaba transmitter using the S.Bus2 port Multiple optional telemetry sensors may be connected to the S.Bus2 port and the data displayed on the transmitter Includes both standard PWM output ports and S.Bus output ports Extra voltage port, 0-70V DC SPECS: Receiving Frequency: 2.4GHz FASSTest system Power Requirement: 3.7 - 7.4V (voltage range 3.5 - 8.4V) Current drain: 75mA Extra Voltage Port: 0 - 70V DC Size: 0.98 x 1.9 x 0.56" (24.9 x 47.3 x 14.3mm) Weight: 0.38oz (10.9g)