Video Sunglasses with HD DVR (1280*720) Glass Lens changeable Very imperceptible design 4GB memory Factory Price Video SunglassesThe glass lens can be changed: short-sighted lens , or other styles flat lensShooting high-definition video, Also a PC Camera, Built-in flash, Simple operation, elegant design, small size, easy to carry. For business, education, security, media, justice, tourism, health ...