There are two versions of the Razer Phone Cooler Chroma. One uses Apple’s MagSafe system, enabling you to attach the device magnetically to an iPhone 12 or newer. And in case you are not an iPhone user, the other version uses clamps for attaching the cooler to your phone. This way, the device is compatible with all popular smartphones. To control the Razer Phone Cooler Chroma, you need to install an app that connects to the cooler via Bluetooth. From the app, you can control the speed of the cooling fan. The app also enables you to customize the RGB lighting as well.
The Razer Phone Cooler Chroma doesn’t come with a built-in battery. It comes with a detachable, 1.5 m USB Type-C to USB Type-C cable. So to use the cooler, you will need to plug it into a compatible power adapter or power bank. It seems that this device is not meant for use on the go since you can’t power it from your phone.