This is the Futaba R334SBS 2.4GHz TFHSS 4-Channel SBus-2 Receiver. The R334SBS is designed for use with the Futaba  T-FHSS  SR/T-FHSS system transmitter. The R334SBS receiver has adopted the newly developed high-speed response system "T-FHSS SR".

Features:

• Designed for use with Futaba surface transmitters using TFHSS and
• TFHSS-SR technology
• 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 manufacturer warranty through Hobby Services beginning at date of purchase

Specifications:
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)