The smallest Ball of all. The Smart & Green Pearl Bluetooth LED Indoor/Outdoor Lamp is a perfect little sphere, able to provide glowing ambiance inside, outside or even floating in a pond or pool. It is made out of tough, waterproof polyethylene with a rechargeable LED that can create a steady glow, change colors or flicker like candlelight. To change the color, dimming, scheduling and even have multiple products communicate with each other, simply download the Smart and Green app. Using Bluetooth mesh technology without a WiFi network, you can control various scene modes from your own smartphone.