Add an extra layer of security to your vehicle with this MASO car alarm siren. It's loud—125 dB loud—to scare off potential thieves and alert you. The system comes with two remote controls for arming/disarming from up to about 100 meters away. It has seven adjustable sensitivity levels (default is level 4), so you can set it to go off only for solid bumps or for lighter touches. Installation is simple and non-destructive for most 12V vehicles: just connect the red wire to a constant 12V source and the black wire to ground. No need to cut factory wires typically. It works with electric or pneumatic central locking systems. Compact size (about 3.15 x 3.15 x 3.35 inches) makes it easy to hide under the dash. Great for cars, trucks, motorcycles, or even storage sheds. A low-cost way to deter theft and give you some peace of mind. Includes the siren, two remotes, and an English manual.