The TP-Link Tapo S200B is a versatile smart button designed to simplify how you control your connected home devices. This compact white controller allows you to trigger various actions through a single tap, a double tap, or by rotating the dial, giving you a tactile alternative to using a smartphone app for everyday routines. Measuring just 43.5 mm in diameter and 16.9 mm in height, the device can be placed on a desktop, attached to a wall using the included double-sided tape, or snapped onto magnetic surfaces. It operates on a CR2032 coin cell battery, which is included in the package and provides power for over a year, reducing the need for frequent maintenance. To function, the button requires a Tapo H100 or H200 hub and connects via 868MHz or 922MHz protocols. It is compatible with mobile devices running iOS 10+ or Android 5.0+, making it a practical tool for anyone looking to automate their environment with simple physical gestures.