•2.4GHz WiFi One-Key Connect Easy Setup: Do not need a home gateway, you can easily achieve intelligent control of home appliances, simple operation, and are easy to use. 2.4G Hz protocol is more stable, faster, and more convenient •Siren with Temperature and Humidity Sensor: The APP sets the temperature and humidity alarm range in advance, detects changes in ambient temperature and humidity, exceeds the safety interval, and automatically alarms even in the absence of a network •Plug and Play Farewell Tedious: Small size which does not take place, plug in anytime to use, easy and convenient •Super Alarm Dazzling Light: Smart Alarm, Sound alarm at the same time flashing, dazzling red light with alarm, full of power •Small & Compact Appearance: Reasonable size design, optimize the internal structure, which brings you convenience, beauty, and enjoyment Specifications: •Power supply: Mini USB, 5V-1A •Backup power supply: CR123A x 2 (Not Included) •Sound intensity: 100dB •Wireless Type: 2.4GHz, 1T1R •Protocol: IEEE 802.11b/g/n •Wireless Range: 45m •Operating Temperature: 0℃~40℃ (32°F~104°F) •Free app: Tuyasmart or Smart Life •Support systems: Android and IOS •Product size(D*W*H): 68 x 68 x 30mm Package included: •1 x Siren Alarm •1 x Charging Cable •1 x English Manual •Other items not included