The GYC470 has been designed for use with Futaba transmitters, receivers and servos. The GYC470 may not work properly with other non-Futaba combinations.Features:Dedicated RC car settingRemote gain function and mode switching functionIntegrated, compact, and light weightEasy setupSupports S.Bus/S.Bus2 ConnectionOnly for Futaba digital servoT-FHSS SR (Super Response) systemSpecifications:Operating Voltage: DC 4.2-8.4VDimensions: 20.5 mm x 20.5 mm x 11 mm (0.8 in x 0.8 in x 0.43 in)Weight: 3.7 g (0.13 oz)