Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life.Features: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 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: DC12-72VItem 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 * Transmitter 1 * Receiver 1 * Protective Cover 2 * Fuse