Myopia/presbyopia can be observed with naked eyes without wearing glasses. Safety protection is not afraid of environmental challenges, the product is IP54 waterproof, dustproof and anti-drop. Product model: SW-600A SW-1000A SW-1500A.
Liquid Crystal Display: Transmissive LCD. We believe our items are so outstanding. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. If not, please let us know before we sent you the package, or we will not be responsible for any loss.
All package need to wait 30 days, Please take care it. Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.