Smart Doorbell Sensor Alarm System Induction Caller for Tuya Household Appliances

Feature: 1. DIY YOUR ALARM SYSTEM: With door and window sensors or human infrared sensors, your doorbell instantly upgraded to a burglar alarm 2. SMART DEFENSE: WiFi smart cloud service online, anytime, anywhere to protect your home, you can use with confidence 3. DOORS WINDOW NOT CLOSED REMINDING: Don"t worry if you forget to close the window, the doorbell will also help you remember 4. SET INCLUDES: Come with receiver, doorbell, double sided tape, stickers for easy installation and use 5. SOUND AND MELODY: Frequency for 433Mhz, 58 kinds of melody can be selected, contain 5 sound level(including mute) Specification: Item Type: Smart Doorbell Voltage: 220V EU Plug Receiver Battery: Polymer lithium battery 300mAh Frequency: 433Mhz Wifi: IEEE802.11b/g/n Optional Melodies: 58 Sound Level: 5(including mute) Doorbell Battery: 1 x CR2032 button battery 150mAh Material: ABS Weight: 158 g / 5.6 oz(approx.). Package List: 1 x Receiver1 x Doorbell1 x User Manual1 x Double Sided Tape1 x Sticker