R304SB Futaba 4PLS 4-Channel 2.4GHz T-FHSS Telemetry Radio System w/R304SB Receiver
This is the Futaba High R2104GF High Voltage 2.4Ghz S-FHSS 4-Channel Receiver, and is intended for use with the Futaba 4PL transmitter. R2104GF specifications: