Sweet Donuts Design, when you see it, you will want to use it.

This container-free humidifier is portable and can be used anywhere.
Just put it in a cup, bottle or other container and it will start working right away.

Specification

• Power: about 1.5w
• Working voltage: 2.5-5v
• Spraying amount: 35ml/h
• Apply to: glass, mineral water bottle, mug, etc
• Feature: dismountable
• Notice: Please make the cotton swab wet completely before using, and do not lost the spring.

• 1 * humidifier
• 2 * long cotton swab
• 2 * short cotton swab
• 1 * usb cable
• 1 * manual