R304SB T-FHSS Telemetry System 4-Channel 2.4GHz Receiver
For surface models.
Features:
Power Requirement: 4.8 - 7.4V battery (dry cells cannot be used)
Receiving Frequency: 2.4GHz
System: T-FHSS (auto detection) w/ SBUS2 port
Specifications:
Dimensions: 35.1x23.2x8.5mm
Weight: 6.5g
Antenna Length: 7-1/2"