What's in the box:

Tuya Smart WIFI GSM Alarm Host 433MHz Detectors PIR APP Remote Control Compatible with Alexa Google Assistant Home Burglar Security Alarm System (White)

Features:
Smart WiFi+GSM 433MHz alarm system with APP Tuya remote control function, including remote arm and disarm, etc.
Can store 3 groups of time arm and disarm function, each group can be customized by week.
It can set 4 groups of alarm phone numbers and 3 groups of SMS phone numbers.
Built-in rechargeable battery, easy and convenient for you to make it full of power.
Can be linked with smart switch, wifi camera and other smart home devices.
5 Zone types for selection, Normal, Stay, Smart, Emergency, Close Zone.
Voice control, compatible with Google Home, Nest & Amazon Alexa.
Door Sensor two-way function is also supported.
Supports 24 Wireless zones.

Specifications:
Item Type: Home Security System
Color: White
Material: ABS Plastic
Optional Plug: UK Plug
Input Voltage: DC9V-12V
Standby Current: <25mA> Alarm Current: <450mA> GSM Frequency: Support GSM850 / 900 / 1800 / 1900MHz
Alarm Loudness: 85db (Built-in Alarm)
WiFi: 2.4G
Wireless Frequency: 433MHz, 2262/1.5-4.7m, Ev1527/300k
Backup Battery: Lithium Battery, DC7.2V
Alarm Host RF Transmitting Frequency: 433MHz (75MHz), PT2262 / 1.5-4.7MO: EV1527 / 300K
Factory Default Password: 1234
Working Temperature: -10?~+50?
Package Size: approx. 13 * 12.5 * 8.5cm / 5.12 * 4.9 * 3.3in
Package Weight: approx. 539g / 19oz

Package List:
1 * GSM+WiFI Security Alarm Host
1 * Door Magnet
1 * PIR Infrared Sensor
2 * Remote Control
1 * Power Adapter(UK)
1 * English Instruction Manual