phones, keys, credit cards, door knobs, steering wheels, and any other inanimate object that has harmful bacteria or viruses. Eliminates bacteria up to 99.9% in just 20 seconds. Convenient rechargeable battery has a standby time of up to 6 months. Ultra portable size and design keeps you and your family safe anywhere you go, anytime. This device is intended for the air, water, and inanimate objects only. NEVER expose eyes or skin to UV light. Doing so may result in serious injury.