The R304SB-E is a compact little 4 channel receiver using T-FHSS telemetry designed for use with electric cars. Suitable for HV applications the R304SB-E has an operating voltage range of 3.6 up to 8.4v. Similar to the R203SB the R203SB-E has a compact built-in aerial allowing for easy clean installations.
T-FHSS is a variation of Futaba's FHSS technology with the added bonus of telemetry. As standard the receiver will monitor its own voltage and transmit that back to your T-FHSS transmitter. There is also a S.Bus2 port included allowing you to plug in additional futaba telemetry sensors.