# button

> Ultrasonic Atomization Technology: The built-in ultrasonic atomizer uses high-frequency vibrations to break down water into nano-sized cool mist particles. This fine mist is dispersed quickly and evenly into the air, effectively relieving dryness without dampening your desk or electronics.  Portability & USB Power: Designed to be compact and lightweight, it fits easily into any bag or backpack. It’s powered by a universal USB cable, allowing you to plug it into your laptop, a power bank, or a car charger for instant humidification wherever you go.  Whisper-Quiet Operation: Operating at a sound level below 30dB, it’s as quiet as a whisper. Whether you're working with deep focus or settling down for a peaceful night's sleep, it will moisturize your air silently in the background without any disturbance.  Smart & Safe Features:  Two Mist Modes: Choose between a continuous spray or an intermittent mist to suit your comfort level and needs. Auto Shut-Off Protection: An integrated water level sensor automatically turns the device off when the water runs low, preventing damage from dry burning and giving you peace of mind. Ambient Night Light (Optional Feature): The soft, gentle LED light creates a warm and relaxing atmosphere, doubling as a convenient night light.

- Author: [ShengzhiSang](https://21st.dev/@shengzhisang)
- Library: ShengzhiSang
- License: unknown
- Live preview: https://21st.dev/@shengzhisang/components/button

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/shengzhisang/button?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt