Features: Keyless Entry: Whenthesmartkeywithindetectionarea(approx3meters),thesystemdisarm,(carownermusttakealongthetransmitter). Whenthesmartkeybeyondresponsearea(approx5meters),thesystemalarmoranti-hijackingmode. LowBatteryDetection:Aftertensecondstheenginestarted,ifthebatteryvoltagebelow2.3V,thebuzzeronthemainunitwillsoundthreetimes,andtherepeatthreesecondslater,toremindthecarownerchangingbatteryintime. Emergency Release Mode: Press the reset button continuously for 3 times and keep pressing the button at the third time. Until the buzzer of main unit sounds 2 times, then both the alarm system and the anti-hijacking function are shut down, the engine lock is unlock. Wide Application: universal type, suitable for most DC12V gasoline vehicles on the market, easy to install. The keyless entry starter is fully functional and practical. Note: Please read the instructions carefully before use. Specifications: Item: Keyless Entry System Main Material: ABS Color: Black OperationVoltage:DC12V StaticCurrent:8mA EffectiveReceivingRange:2-5m ACCCurrentOutput:30A Ignition1CurrentOutput:30A Ignition2CurrentOutput:30A StartCurrentOutput:30A RemoteControllerOperationVoltage:3V RemoteControllerStaticCurrent:5uA RemoteControllerOperationFrequency:2.4GHz Start Button Outer Diameter: 5.3cm Keyless Entry Starter Size: 9.2*6cm Remote Controller Handle Size: 5*2.8cm Package Size: 19.5*13.5*6.5cm Package Weight: 334g Package List: 1 * Keyless Entry Starter 2 * Remote Controller Handle 1 * Start Button 2 * Harness 2* CR2032 Battery 1 * Instruction