The Citadel, a portable e-kettle device, enhances the on-the-go experience of enjoying hot and clean water for modern individuals. Its compact size ensures maximum portability, making it ideal even for business trips. Additionally, it sterilizes the water, alleviating concerns about bacteria.

The Citadel boasts a minimalist design with intricate surface details. Notably, a red capsule ring on the lid serves a dual purpose as a functional element for tea drinking and a convenient attachment point for hanging on your bag.