Description: 【Unique Appearance】: Retro style RGB tube clock, LED digital lights, support multiple display modes (gradient, breathing lights, etc.), custom digital colors, change colors according to scenes and moods. 【16 Million Colors】: The Nixie tube clock can display 16 million colors and has a longer service life, we have designed a variety of color ways to suit any scene and mood. 【USB】: Nixie tube digital clock is powered by USB, easy to use. Support 12/24 mode switching, even if the power is off, it will not affect the travel time. 【Multifunction】: Simulation nixie tube digital clock supports WiFi network time synchronization, mobile control, alarm clock and time system switching function, timer function, and supports up to 99 minutes of timing. 【Perfect Gift】: The Modern Desktop Clock is very stylish and a great gift for your family, boyfriend, colleague, or friend. Specification: Material: PP Size Chart: 21.6cmx6cmx7.5cm/8.50inchx2.36inchx2.95inch Package Includes: 1 Nixie Tube Clock(Set) 1 USB cable 1 Manual Note: Please allow slightly errors due to manual measurement and different monitors.Customer satisfaction is our primary concern. If the product is somehow cracked or broken during shipping, please feel free to contact us. We will try our best to give you a satisfactory solution.