Digital and Electronic Device Design StoneDock ECO friendly iPhone iPod charging dock with missing call alert feature by Xavier Houy The StoneDock automatically starts charging by simply plugging your iPhone or iPod on the connector. When the device is fully charged or unplugged, it will automatically shut off with ZERO idle power to save energy waste and your device battery. With STONEDOCK GreenZERO we could save 47 Mega Tons of CO2 every year for 70 million users