The Smart & Green Olio Bluetooth LED Vase is the prime example of just how watertight the Smart & Green polyethylene shell really is. You are invited to use the hollow cavity as a bud vase and fill it with water; nothing gets at the integral LEDs. When not in use as a vase, Olio can also be hung upside down as a little lantern. 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.