Can nose hair trimmers be used cordless?

Whether the nose hair trimmer supports wireless use mainly depends on its specific power supply method and design. Generally speaking, nose hair trimmers have two main power supply methods: rechargeable and battery powered.
For rechargeable nose hair trimmers, they typically come with built-in rechargeable batteries that can be charged through a USB interface or other charging methods. This nose hair trimmer can be used wirelessly after being fully charged, without the need for an external power source or battery, making it very convenient to carry and use. Users only need to turn on the switch when needed to trim their nose hair.
For battery powered nose hair trimmers, they require external batteries (such as dry batteries) to provide power. This nose hair trimmer needs to be replaced with a new battery after the battery runs out, so it is relatively less wireless and convenient to use. However, some battery powered nose hair trimmers are also designed to be compact and lightweight, making it convenient for users to carry around and replace batteries.
In summary, whether the nose hair trimmer can be used wirelessly mainly depends on its power supply method. The rechargeable nose hair trimmer supports wireless use, while the battery powered nose hair trimmer can only be used when the battery is fully charged. When choosing a nose hair trimmer, users can choose the appropriate power supply method and model according to their own needs and preferences.