Product Name: FS-SR12 Compatible Transmitters: Adapts transmitters with ANT protocol, such as FS-ST8 Compatible Models: Fixed-wing aircraft, helicopters, gliders, delta-wing airplanes, multicopters, engineering vehicles, boats, robots or cars. PWM Channels: 12 RF: 2.4GHz ISM Maximum Power: < 20dBm (e.i.r.p.) ?EU? 2.4G Protocol: ANT Resolution: 4096 Antenna: Two antennas Distance: > 1500m (Air distance without interference) Input Power: 3.5~9V/DC Working Current: 70mA/5V Data Output: PWM/PPM/i-BUS/S.BUS Online Update: Yes Temperature Range: -10? ~ +60? Humidity Range: 20% ~ 95% Dimensions: 44.8*32*11.3mm Weight: 13g Certifications: CE, FCC ID: 2A2UNSR1200 (FS-SR12)