Smart Electronics Protect your home's doors and windows ANYWHERE AT HOMESecure your home in different places with the set of 4 alarms: front door, balcony door, garden door, bedrooms, windows. EASY Installing the alarm requires no tools or cables. Just stick it to a window sill or door frame using the adhesive strips included with each part. Magnetic operation takes care of the rest. Small size alarms are convenient and unobtrusive. Their white design does not detract from the aesthetics of your room. NOTEMake sure that your apartment or house has the right conditions for setting up the security system, without accidental triggering (the transmitter - receiver distance should not not exceed 10mm). OUR RANGEOur offer includes numerous accessories and products for the home from our Navaris brand. Take a look! TECHNICAL DATA Transmitter dimensions: 9 x 3 x 2 cm / receiver: 5 x 1 x 1.5 cm Batteries: 2x AAA 1.5V per alarm (not included) Volume: 100dB Maximum distance between transmitter and receiver: 10 mm INCLUDED IN DELIVERY 4x wireless alarm 4x magnet receiver 8x AAA battery Note: The data is all measured manually, please allow error of 1-3cm, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.