Normal Puck.js devices come with a plain white silicone cover, but in many cases you might want something a bit different. Thess silicone covers replace the white case that comes with Puck.js.

You get 5 covers in total:

• A Black translucent cover with a dark tint. It lets through more light than the standard white case while blending in nicely if you want to place Puck.js on a dark background.
• Red, yellow, green and blue cover are vivid primary colors. Red and yellow cases let through a small amount of red light, but other colors will completely block Puck.js's LEDs (including the IR LED).

What is Puck.js?

Puck.js is an intelligent Bluetooth button. With the Espruino JavaScript interpreter on its internal ARM microcontroller, software can be uploaded, debugged and modified wirelessly from any modern computer or phone, making development of embedded devices significantly easier. It has built-in sensors, lights, infrared transmitter, GPIO, and can even control other Bluetooth LE devices.