Futaba R7208SB Receiver FASSTest Receiver Built-in FDL Feature

R7208SB– FASSTest Bi-Directional Communication System S.Bus/S.Bus2 Port and 8 Channels for Conventional System Receiver For Aircraft Models (01102381-1) SIZE:24.9 mm x 47.3 mm x 14.3 mm0.98 in x 1.86 in x 0.56 in WEIGHT:12.0 g0.42 oz POWER REQUIREMENTS:3.7 V to 7.4 V (Voltage Range: 3.5 V to 8.4 V) BATTERY F/S VOLTAGE:FASSTest — It sets up with a transmitter. EXTRA VOLTAGE PORT:0 ~ 70 V DC Integrated FDLS. See manual here. Never use dry batteries for the power supply of the R7208SB as they may cause difficulties.