video module for card, invitation 1. customised size 2. Customised design 3. good sound ... , etc3.The memory storage could be 128M, 256M, 512M, 1G, 2G, 4G, even big if customers have special requirements. 4. The ... button, motion sensor, etc. 5, The dimension of the video card( thickness, width and length)Support USB upload video file Recharge ...