Specifications
Dimensions: 30.5*16mm (1.2” *0.63”)
Antenna Length:90mm (3.54”)
Weight: 2.5g(0.09oz)
Channel: 12 channels
Operating Voltage: 3-6V DC
Operating Current: 35mA@5V
Receiving Current: <32mA@5V
Telemetry Transmission Current: <125mA@5V
Signal: SBUS&PPM
Frequency: 2.4GHz ISM band(2400MHz~2483.5MHz)
Spread Spectrum: DSSS&FHSS
Channel Resolution: 4096 with regular jitter of 0.25us
Reception Sensitivity: -97dBm
Power: 20dBm(100mW)
Control Range:4KM (2.49 miles) in the air (Maximum range tested in unobstructed areas), free of interference, and may vary depending on local regulations.
Compatible Models: 
Helicopter, Fixed-wing, Glider, Multicopter, Car, Boat, and Robot work with a flight controller
Real-time Telemetry: 
Real-time built-in telemetry of receiver voltage and RSSI value.
Connect PRM-03 and flight controller PIX6, PIXHAWK, CrossFlight-CE, CrossFlight, CrossRace Pro, CrossRace, Mini Pix, TURBO PiX, or APM for OSD information telemetry.
Hardware Interface: 
3-pin 2.54mm Pin / 4-pin 1.0mm Socket
Compatible Transmitter:
AT10II, AT10, AT9S Pro, AT9S, AT9