【Nixie Tube Clock & Time Mode, Weather Mode, Image Mode】This is a "simulated Nixie tube clock" that displays the time with a fantastic light and a retro atmosphere. The Nixie tube clock has time mode, weather mode, and image mode. In time mode, you can download various numerical display effects from the app. In weather mode, you can see the weather, temperature, humidity, etc. You can switch to weather mode by quickly pressing the back button twice. In image mode, you can download a large amount of materials to the app and use them directly, or you can upload your favorite photos from your own album. For example, it can display photos of family and pets, and also serves as a digital photo frame. 【All Controlled by APP & Large Amount of Built-in Materials】This Nixie tube clock is controlled by an APP. You can download and install the APP on almost all systems, such as Android/iOS/Google. In addition, a large amount of materials are built into the APP's homepage, which can be used freely, making it very convenient. 【IPS Display Screen & Supports DIY Photo Backgrounds】The IPS digital tube clock screen is a large 1.14-inch size with a high-definition resolution of 135*240 DPI, allowing photos to be seen clearly. In addition to using the images built into the app, it supports uploading various photos from your photo album through the app, allowing you to set your own unique background. Let's DIY your own unique photo background. If you look up during work and see photos of your family and pets through the Nixie tube clock, you will surely be moved. 【No Batteries Required & With Memory Function】The Nixie tube clock is powered by a USB cable, and no batteries are required. It is safe, cost-effective, and environmentally friendly. The digital clock also has a memory function, so if the power is turned off, the current time and style settings are retained, and you don't have to set the time again the next time you use it, which is very convenient. 【No Assembly Required & Two Types of Base: Illuminated/Non-Illuminated】The Nixie tube clock requires no assembly and can be used immediately. Material: Aluminum alloy quartz glass. Product size: Length 21.85 * Width 3.65 * Height 5.87cm. Type A is a base-illuminated type, and type C is a base-non-illuminated type. The product is carefully packaged, making it a great present for lovers, family, and friends. Thank you for viewing.