Features:- Portable, light weight, easy to use - Battery operated - 4xAA batteries required (not included) - Assurance to hygiene - Laboratory tests prove it can kill viruses, germs and bacteria (99.9% rate) including dust mites and bed bugs - A Majority of daily essentials can be scanned eg. Furniture, pillows, mattresses, cutleries, keyboards, toilet etc - Quick and efficient results - germs are killed by one scan - Safe to human, pets and animals - Invisible UV rays - LED display to indicate its operational status - 3 timer settings - auto-turn off in 5 minutes/ 15 minutes/ 30 minutes - Can be main powered for continuous operation (Serial mode) - Beneficial to people who suffer Allergies, Asthma and Rhinitis etc - Suitable for both domestic/commercial use and public services such as hotels, hospitals - Build-in safety switch: the UV light will automatically switch off when the steriliser is rotated upwards. Q&A:Q: What is that UV light used inside the handheld UV Steriliser? A: It"s called Ultraviolet (UV-C) light. A common one is UV-B, which is widely used at tanning salon sun bedding. UV-C has higher frequency of the UV light that can kill germs. It is part of the ultraviolet light spectrum. Q: Is UV-C harmful? A: Only prolonged exposure (ie. 8 or more hours) to UV-C light will be harmful for human.Q: How UV-C kills germs? A: UV-C light is highly effective at penetrating thin-walled germs like viruses and bacteria. The light alters the genetic structure of the germ and they die.