ITEM NAME:DC12V REPLACEMENT REMOTE CONTROL 4 BUTTON CAR ALARM SECURITY 315MHz A#S Product Description Description: 100% Brand New and High Quality Working voltage: DC12V(27A/12V battery x1, Included) Output Voltage: AC and DC optional Working frequency: 315MHz Key: 4 Keys Emission Distance: 20-50m (Open area) Transmission rate: 50-60 KHz The working temperature: -10Â °C to 50Â °C Encoding type: Learning Code Working chip: EV1527 Resistance: 330K Case material: Metal Size: 50*40*10mm Uses: Family, shopping malls anti-theft alarm system, electric vehicles, automotive, motorcycle alarm, all kinds of door and window controller and other industrial control. Included: 1 * Wireless Remote Control.Working frequency: 315MHz. Emission Distance: 20-50m (Open area). Resistance: 330K. The working temperature: -10Â °C to 50Â °C. Key: 4 Keys. 12 months Warranty. If item is defective after 3 months, you can still send it back to us.