đăFEATUREăAccepted power supply is 9V-15V, Working current 10mA, Power 20W, 6 Tone alarm, 7 sensitivity levels, Alarm loudness 125DB, Alram range can reach to 100m/328.08ft,Size:S 3.15*3.15*3.94 inch đăEASY TO INSTALLă5 minutes DIY install, Red wire connects to 12V +, Black wire connects to 12-, Gray wire stay unconnected. then press the "lock" key on the remote control,it starts work! No need to cut the original car cables. đăRemote ControlăWireless remote control, Press the "lock" button, the siren will sound once, and enter the anti-theft state after 5 seconds. Whaletail anti-theft device is high sensitivity , it can effectively protect your personal property and prevent your cars from being stolen. đăWireless Car Alarm SystemăWith WHALETAIL Auto Car Alarm Device, you can arm or disarm your car easily, simplify your user experience, more convenience for One-Press car-finding. Universal for all 12V cars, fits for electric, pneumatic and modified central locking system. đăPACKAGE INCLUDEDă1x Main Control Unite; 2x Remot control; 1xEnglish manual Description: Working voltage: DC 12 ±3V Static current:10 mA Siren: 10A Working frequency: 433.92MHZ Remote control: Working voltage: DC 12V Average static current:0 mA Battery:6V CR2016*2 About installation: The product need installed by the Profesionales with Car electrician certificated OR by oneself For 12V DC car The item without central door lock functons Package Include: 1x Main Control Unit 2x Remote Control 1x English User Manual