Smart electronics Protect the doors and windows of your home ANYWHERE AT HOME YOU: Secure your home Different locations thanks to the set of 4 alarms: front door, balcony, garden, bedroom, window. EASY installation: The alarm requires no tools or cables. Just stick it to your wall, a windowsill or door frame thanks to the adhesive strips included with each piece. The magnetic operation does the rest. Alarms: small size, practical and discreet. Its white design does not affect the aesthetics of your room. NOTE: Make sure your apartment or house has the right conditions to install security system, without accidental triggering (the distance transmitter - receiver must not exceed 10 mm). TECHNICAL DATA Dimensions of the transmitter: 9 x 3 x 2 cm / Receiver: 5 x 1 x 1.5 cm Batteries: 2x AAA 1.5V per alarm (does not include step) Volume: 100 dB Maximum distance between transmitter and receiver: 10 mm INCLUDED IN DELIVERY 4x wireless alarm 4x magnetic receiver