Xiaomi YTC4040GL My Wireless Switch

The Mi Wireless Switch is one of Xiaomi’s components dedicated to the smart home sector. In this case, this device can be used to alert a member of the household that his or her presence is required in the area where the press was made, or in case of emergency with persons of reduced mobility, which is its most useful function. It is powered by a 3V CR1632 button cell battery, which can be easily replaced when it is exhausted. Its dimensions are 3.6 x 3.6 x 1.15 cm for a total weight of 200 g. It is made of fireproof plastic and is only available in a white finish. It features 2.4 GHz WiFi based on the Zigbee Protocol and is compatible with both Android above version 4.0 and iOS above version 7. The device supports three different keystroke types: short press, double press, and long press. Each of these modes can be assigned to an action related to home automation. For example, one of the presses can be associated with making a call to an emergency number or to a pre-set number, but the possibilities are practically infinite.
Main Features:

One key to control: Making breakfast in the kitchen, press the switch, call the child out of bed
Before sleeping: One button to turn off all appliances
Waking up at night: One button to turn on the nightlight
When going out: One key to control household appliances
Portable, small size, easy to install

Specifications:

Size: 3.60 x 3.60 x 1.15 cm
Weight: 200 g
Material: Flame Resistant Plastic
Powered by: 1 x 3V CR1632 button battery
Operating temperature: 0 C — 40 C
Color: White
Package: 1 x Wireless Switch, 1 x Manual and warranty card