Futaba R314SB 4 Channel T-FHSS S.Bus 2.4gHz Receiver Suit 4PV, 4PM, 4PX, 7PX and 7PXR

Designed for use with Futaba surface transmitters using TFHSS and
TFHSS bidirectional telemetry
Programmable and compatible with S.Bus2 systems
Normal/high-speed modes (auto detection), normal mode accepts any
type of servo, high-speed mode only accepts digital servos
including BLS servos
High voltage
Dual antenna diversity
Battery fail safe
One year limited warranty through Hobby Services beginning at date of
purchase

Specs:

Operating Voltage: 3.7-7.4V
Size: 1.3 x 0.88 x 0.44" (33.9 x 22.3 x 11.3mm)
Weight: 0.26oz (7.3g)