SIYI FT24 2.4GHz 12CH 15KM Long Range Remote Controller with FR OTA Receiver for TBS TX Module Helicopter RC Airplane Car Boat Specifications:FT24 Remote Controller Specifications: Maximum Communication Distance (No Interference, No Obstruction): 15km Working Frequency: 2.400-2.483GHz Number of Channels: 12 Physical Channels, 16 Signal Channels Supported models: multirotor/fixed/glider/helicopter/car/boat Dimensions: 191*175*64mm Weight (excluding battery): 586g Supported battery types: 18650*2, 2S Lipo battery Interface: XH2.543pin Battery compartment size: 60*58*16mm Antenna gain: 2dbi Working current (rated): 210ma FR receiver Specification: Signal output: 16-channel S.Bus, 8-channel PPM, 8-channel PWM Data interface: UART Size (excluding antenna): 51.5*38*13mm Weight (excluding antenna): 20g Antenna gain: 2dbi Operating voltage range: 5V-8.4V Return voltage range: 0-50v Operating environment temperature: -10鈩?to 55鈩?b>Features: 1.15km beyond-line-of-sight control, using the latest ultra-long distance, adaptive bandwidth, automatic interference avoidance frequency hopping, two-way telemetry and other technologies, with industrial-grade RF hardware that can resist high-power electromagnetic interference, the maximum ground-to-air flying distance can reach 15 kilometers, thus effectively ensuring low-altitude control stability in multi-shielded and heavily interfered environments such as woods, racetracks, and garages. 2. Free expansion, have fun. A variety of functional expansions and peripheral reservations support more possibilities, and users can configure Bluetooth modules as needed , data transmission module, FPV digital image transmission and external multi-protocol high-frequency head, fully meet the needs of model users, and greatly improve the playability. 3. Wireless communication and interactive experience, say goodbye to traditional wired communication and physical button interaction, everything is for efficiency and convenience, Siyi Technology has devoted itself to creating wireless frequency binding, receiver OTA wireless upgrade and wireless configuration parameters for model remote control. In addition, there are many advanced wireless applications such as wireless trainer, wireless copy, one control of multiple aircraft, remote control relay, etc., which greatly improve the user experience. Package included: 1X SIYI FT24 Remote Controller 1 x FR receiver (Optional)