Description:  Wireless WiFi Cloud Smart Home Alarm Kit Gateway by Smart Life Tuya Smart App Control.    Features:  1. Work as a standalone alarm gat_way or wifi buzzer.  2. APP-based control and monitoring.  3. Build-in strobe buzzer and mute, low, medium, high volume are optional.  4. Support up to 20 detectors and 5 remote controllers.  5. 8 kinds alarm sound.  6. Timing arm and disarm.  7. With night light function, can be linkage others to automation  8. Easy to remove and take with you.    Basic parameter:   Color: Siliver;  Wireless Frequency: wifi;  Wireless transmission distance: ≤100 m (Open space);  Battery: included;  App name: Smart Life;  Application: Home Automation;  Power input: DC5V 1A;  Backup battery: 3.7V 650mAh;  Working Mode: WiFi 2.4G/433mhz;  Sound: ≤120DB;  Support 5 remote controllers and 20 wireless 433mhz accessories;    Package included:  1 x multi-function gat_way;  1 x door sensor;  1 x Human body sensor;  1 x doorbell;  2 x remote control;  1 x English manual