As soon as an intrusion has been detected the indoor siren will start it’s 110dB siren to deter uninvited people. The indoorsiren has a slim design and can be placed on any type of furniture in home. The indoor siren has extended tamper detection: as soon as the siren is moved, it will activate instantly. The siren will go off and you will receive a push notification. **Features** - Loud 110dB siren to scare off uninvited people. - After 3 minutes the siren will stop automatically or you can stop it via the app. - Audible confirmation of arming and disarming. - The indoor siren has extended tamper detection: as soon as the siren is moved, it will activate instantly. The siren will go off and you will receive a push notification. **Fast and easy installation** - Setup in minutes - Simply position the siren on a piece of furniture in your home - Automatic system recognition when installed. **Power supply** - 4 D Alkaline batteries included. - Battery life: 2-year battery life with normal use. **What\'s included?** - 1x Somfy® indoor siren - 4 alkaline LR20 batteriestect Indoor Siren