LED Backpack Adjustable Straps USB Powered Programmable Screen Bag For Outdoor
Feature: 1. 47 x 37.1 x 20.1cm / 18.5 x 14.6 x 7.9in. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls. Left Right Eye Screen Resolution: 64x32. Screen Dot Spacing: P2.