Safe, Effective & Eco-Friendly --- Our UV light disinfects surfaces around you without any chemicals, residue, odor, pollution or use of water, making it very safe to use everyday for both you and environment. Name: Foldable UVC Sterilizer Color: As Shown Power: 3W UVC Wavelength: 253.7nm (UVC) Voltage: 3.7V / USB Power: 4 AAA batteries (not included) or USB interface Disinfection area: Less than 10cm (59 seconds per time) Product size: 24 x 3.4 x 1.5CM (unfolded) 13.5 x 3.4 x 2.5CM (closed) Weight: 106g Service life: 20,000 hours Material: ABS Package Contents: 1 x Foldable UVC Sterilizer 1 x USB data cable 1 x English instruction manual Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.