When using CGY755, GYA553, DLPH-2, etc.,
It is a recommended receiver for aircraft that only need a reception function with an S.BUS connection.
It is also a small receiver, so it uses a dual Rx link system
It can also be used as a sub-receiver.

– FASSTest 2.4GHz (26ch/18ch/12ch mode)
・S.BUS2 input/output / S.BUS output + conventional system output (ch3)
・Equipped with dual Rx link system
・Dimensions: 21.5×39.5×6.5mm・Weight: 6.0g
・Power supply: 3.7~7.4V (batteries cannot be used)
・Battery F/S voltage: Set from transmitter
・Standard connector 

Frequency: 2.4GHZ-FASSTest
Power Requirement: 3.7-7.4V
Voltage Range: 3.5-8.4V