Operating Voltage: 12V-24VFeatures:The transmitter has 8 function buttons, including 6 single speed buttons, 1 start button and 1 stop button.The number of transmitter control points can be up to 8.The transmitter has a safety key switch to prevent 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 alarm device, and the circuit will be automatically shut down if the voltage is insufficient.The nylon fiber shell is drop-resistant, waterproof, anti-corrosion, and insulating.The transmitting and receiving boards use crystal oscillators with stable performance.IP65 protection level, waterproof, dustproof, drop-proof, can adapt to various environments.Using wireless antenna technology, the signal is stronger and the power consumption is lower.External antennas avoid shielding body signals.The receiver comes with a pure copper wire, 1.3m in length, 99.9% pure.The color is bright and clear, and it is equipped with U-shaped terminal blocks for quick wiring.360-degree barrier-free remote control, 5.0 remote control system, strong penetrating power, no need to aim.Specifications:Main Material: Glass Fiber Reinforced NylonMain Color: Orange + BlackModel: F21-E1BTransmitter:Protection Level: IP65Transmitting Power: 10dBmBattery: 2*AA batteries, not includedCode: 32 bits, 4.3 billion groupsTemperature: medium temperatureControl distance: 100 metersItem size: 165 * 75 * 46mm / 6.5 * 3.0 * 1.8inItem weight: 279g / 9.8ounceReceiver:Protection class: IP65Receiving range: 100 metersSensitivity: -110dBmCode: 4.3 Billion Yards, No CommonTemperature: Medium TemperatureShock Capacity: 8 AmpsFully Sealed RelayInput Power: 12V-24VItem Size: 190 * 88 mm/7.5 * 3.5 inchesItem Weight: 655 g/1.4 lbsPackage Size: 310 * 210 * 170mm/12.2 * 8.3 * 6.7 inchesPackage Weight: 1259g/2.8lbsPackage List:1 * Transmitter1 * Receiver1 * Protection Cover2 * Fuse