About this item This ZigBee Siren alarm must connect to the Zigbee gateway (sold separately with ASIN : B096NQNHGZ B095LNFK7G B095LRX15K B0B3F55ZWW B09BQTNRKK) Thanks to the Tuya or Smart Life app it can turn the alarm on and off remotely anywhere in the world Adjustable sound time 0 - 1800s there are 18 ring modes to choose from ringtones to choose adjustable volume in low medium and high maximum volume in 90 dB Using together other ZigBee devices to create an intelligent anti-theft system for the home ZigBee PIR motion sensor with ASIN : B096NP7PFZ; ZigBee Infrared Motion Sensor with ASIN: B096NPNCP3; ZigBee Magnetic Door and Window Sensor with ASIN: B096NPK6QQ ZigBee Mini Magnetic Door and Window Sensor with ASIN: B0B3F3RS2L; ZigBee Vibration Sensor with ASIN: B0B3F58D3S; ZigBee People Presence Sensor with ASIN: B0B3F8892T Dual power option via USB cable with 5 V 1 A power supply (transformer not included) or via 2 x 3 V CR123 A batteries (excluded available with SKU: DU0123) Diameter 68 mm thickness 32 mm ceiling or wall mounting with double-sided adhesive tape and screws. Kit includes: 1 alarm siren 1 manual (French not guaranteed) 1 USB cable for power supply