This is the Futaba 2.4GHz R604FS 4-Channel Receiver with FASST Technology for use with the 2.4GHz FASST Tx Module for the 4PK Radio System.

FEATURES:
Unlike less reliable single antenna receivers, Futaba employs antenna diversity-one internal and one external antenna on the R604FS receiver to eliminate dead spots anywhere on the track Receiver has Auto-Detect function to determine which mode-HRS or PPM is active
One year limited warranty

INCLUDES:
Futaba 2.4GHz R604FS 4-Channel Receiver

REQUIRES:
Installing in model

SPECS:
Reception Antenna: Diversity type (internal and external)
Power Requirement: 6V NiCd battery
DSC Function Available
Size: 1.54 x 1.02 x 0.55" (39 x 26 x 14mm)
Weight: 0.49oz (14g)