LCD greeting cards

What is video greeting card it's traditional greeting card, but there is screen inside, in one word: paper greeting card + LCD screen + USB portPaper priting can be printed with advertising words and imagesLCD screen can allow for pre-recording of up to 2 hours of video and text that can be invaluable for your new campaignVideo greeting card can be recharged by USB port, because there is battery built-in.What is video greeting card used for? it's used for advertisingSpecifications: 1.Material: Paper greeting card + LCD + USB port2.LCD size: 2.4",2.8",3.5",4.3",7" TFT LCD display3.Memory size: 128MB,256MB,512MB,1GB,2GB,or 4GB4.Battery:built-in lithium battery 5.Video support format: AVM/MP4 / AVI 6.Switch: one button control or each button control each video 7.Speaker:built-in 8.OEM orders are welcomed 9.With USB port for recharge and unload video 10.You can unload your own video by yourself.Video Greeting Card, video book, video brochure, video in print, video for print, LCD greeting cards, LCD brochure, Video player, mini advertising player, video cards, video mailer