Rechargeable & Wireless Binocular Indirect Ophthalmology,LED Illumination with 20D Aspheric Lens and Bag

The indirect is light and comfortable. The quality is marginal, the head band now slips, the prisms are out of line. When received it was satisfactory but now is not very useful. It was sent with the wrong plug for USA. The twenty diopter lens is not usable. I would not buy another one, no place to get it repaired.