This is a Bluetooth-enabled PHILIPS hue E17 bulb. It supports full-color light emission. I am selling this because I realized after purchasing it that it cannot be controlled with the Switchbot app. I noticed this after opening the package, so it is unused. I believe it can be used by those who have implemented Alexa, etc. 【Specifications】 - Brand: PHILIPS - Model: hue E17 - Model Number: 470 - Features: Bluetooth compatible - Compatibility: Alexa, Google Home compatible Thank you.