R7308SB– FASSTest Bi-Directional Communication System S.Bus/S.Bus2 Port and 8 Channels for Conventional System Receiver

For Aircraft Models

SIZE:
24.9 mm x 47.3 mm x 14.3 mm
0.98 in x 1.86 in x 0.56 in

WEIGHT:
12.0 g
0.42 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 

Please review the manual HERE:

Never use dry batteries for the power supply of the R7308SB as they may cause difficulties.