Advantages:
- APP notification, you can get alarm anytime and anywhere, support share to 20 users
- With local alarm voice and LED flicker notification, 5 levels volume can be adjust (with mute mode), ringtone optional
- Popular free Smart Life and Tuyasmart APP enjoy a big and stable smart home system, no extra hub required
- Easy carry Bracelet, super light and comfortable material
- Easy to DIY your own alarm system, support max 100pcs 433mhz sensors and 10pcs remote controllers (sensors and controllers not include)
- Arm / Disarm / Away arm / Home arm / Timer provide most convenience mode for you
- APP support English, Russian, Spanish, Portuguese, French, German, Italian, etc
- Support Alexa, Google Home

Specifications:
- Technical Parameters: SOS Bracelet (433Mhz, EV1527, 430K), WIFI host (connect 433mhz sensors, connect 2.4G WIFI)
- 2.4G WiFi connect directly (not support 5G WiFi)
- SOS to wifi host receiving distance: 80 meters (open area), 15 to 30 meters indoor
- SOS Battery: 1 unit CR2032 battery (included), battery can work more than 6 months
- WIFI host Power Supply: AC 220V, include 300mAh backup lithium battery, work more than 5 hours, original European plug
- Working Temperature: -20℃ to 55℃

How to make the system work?
- WIFI host connect to 2.4G WIFI router as the manual
- Connect SOS to WIFI host in the APP
- Press SOS, SOS send signal to WIFI host, WIFI host send notification to APP, also with local alarm voice and LED flicker

PLEASE NOTICE:
- When press SOS button, please hold the button about 1/2 second or a little more, the alarm signal will be stronger
- If your house is very big, suggest order 2 wifi host or more, 1 sos button can connect many wifi host, then elderly walk anywhere in house, the sos button will have at least 1 wifi host under connect area