Rechargeable: Uses the USB charging cable that takes only 2 hours to charge and can be used for 1 hour continuously. Portable: Lightweight so you can travel with it or wear it round the house. Includes: one device, one cleaning cloth, one USB and one manual. Design: Fits comfortably on the face without obstructing glasses or covering the eyes. Adjustable: Adjust the intensity suitable to your eyes with the press of just one button using the 10 minute timer function! Eye massager: Get a 3D LED light therapy eye massage device. 3D Led Light Therapy Eye Massage Device Deal | Living Social | Living Social