Product model: fbr8 compatible transmitters: transmitters or rf modules which support afhds3 protocol. Model type: car/boat pwm channels: 8 rf: 2. 4ghz ism rf protocol: afhds 3 antenna: single external antenna(coaxial antenna) input power: 3. 5-9v/dc working current: ? 50ma/5v data output: pwm/ppm/i. Bus/s. Bus/i-bus 2 resolution: 4096 temperature range: -10? To +60? Humidity limit: 20%-95% online update: yes dimensions: 37*23*13mm weight: 14g (without pin header) waterproof: ppx7 certification: ce?fcc id: n4zfgr8b (fs-fbr8l)