Ultra small 4-channel FASST receiver for Futaba car systems. Successor of the R614FF receiver. New is the second antenna for diversity operation, which further improves the reception quality. Wide voltage range, also suitable for 2S LiPo operation. Switchable from Normal to High Speed Mode (3ms) for extremely short response times (only in conjunction with digital servos). The flat design also allows the use in models with a small scale. Extremely temperature resistant, also ideal for RC cars with internal combustion engines.