Material: Plastic Housing Unit Size: 450 x 297 x 58mm Internal Memory: 128MB to 1GB Memory Card: Built with SD/MMC/MS Card Re Overview The wireless digital signage system is composed of Wireless Signage Display (WSD), Wi-Fi Router and Content Manage System. The wireless signage display connect with internet via Wi-Fi Router or 3G Router, and all users can login to Content Manage System server to ...