Special horn six surround sound Remote start and flameout Extra strong noiseproof feature Resistance to high pressure and waterproof Ultralow power consumption without an effect on battery life Long memory of burglarproof function protects from cutting wires of power Decibel alarm horn: 120-125dB Working frequency: 315MHz or 433MHz Working current: Less than 400mA Static current: Less than 5mA Working voltage: 9-16V Function: Arming, Disarming, Vehicle finder Remote control, easy to use Can help your motorcycle keep from thieves 100 percent brand new Red line: "and" Positive vehicle battery, or a positive line on the vehicle Black line: "-" Negative vehicle battery, or vehicle on the negative line Green or blue line: Signal line (No installation) colour:black Material:plastic size:Alarm speaker size: approx. 8.3x 7.3 x 3.4cm (L x W x H) Package Contents: 2 x Alarm Speaker 4 x Remote Control Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.