Built-in motion sensor, which turns off nixie tubes when nobody is near the clock. This feature prolongs the lifespan of Nixie tubes and saves energy. Date display Olive ash body. This item is in the category "Home & Garden\Home Décor\Clocks\Alarm Clocks & Clock Radios". The seller is "around_photo_sound" and is located in this country: US.This item can be shipped worldwide.