Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life.:12V-24VFeatures:The transmitter has 8 function buttons (6 single speed buttons + 1 start button + 1 stop button).The number of control points of the transmitter can be up to 8.The transmitter has a safety key switch to refrain unauthorized use.The transmitter can be connected to the computer through the data cable to set the button function mode.The transmitter has a battery voltage warning device, and the voltage is insufficient to automatically turn off the circuit.Nylon fiber housing feels comfortable, strong and resistant to falling, waterproof, anti-corrosion, insulation.Transmitter and receiver boards with crystal oscillator for stable performance.IP65 protection level, waterproof, dustproof, anti-fall, can adapt to various environments.With wireless antenna technology, the signal is stronger and the power consumption is lower. The external antenna avoids shielding the signal from the body.The receiver comes with a fine quality pure copper cable with a length of 1.3 meters and a purity of 99.9%. The color is bright and clear, and it is equipped with a U-shaped terminal block for quick wiring.360 degree barrier-free remote control, 5.0 remote control system, strong penetration, no need to aim.Specifications:Main material: glass fiber reinforced nylonMain color: orange+blackType: F21-E1B :12V-24V Transmitter:Protection level: IP65Transmit power: 10dBmBattery: 2 * AA battery (not included)Code: 32 digits (4.3 billion groups)Temperature: moderate temperatureControl distance: 100 metersItem size: 165 * 75 * 46mm / 6.5 * 3.0 * 1.8inItem weight: 279g / 9.8ounceReceiver:Protection level: IP65Receiving range: 100 metersSensitivity: -110dBmCode: 4.3 billion codes, no commonTemperature: moderate temperatureElectric shock capacity: 8 amp fully sealed relay inputPower: 12V-24VItem size: 190 * 88mm / 7.5 * 3.5inItem weight: 655g / 1.4lbPackage size: 310 * 210 * 170mm / 12.2 * 8.3 * 6.7inPackage weight: 1259g / 2.8lbPackage list:1 * Transmitter1 * Receiver1 * Protective Cover2 * Fuse