1. Application: Digital Video Greeting Card for birthday/halloween/christmas day /thanksgiving day /invitation/ brochure/catalogue/ Events & exhibitions/ Luxury invitations/ Advertising promotion,etc. 2. Switch: Magnetic control switch.Open the card,power on and play video automaticly, close the card,power off and stop playing 3. Charge: There are two charging modes: 1.Connect to computer via MIC USB for charging and loading videos. 2.It support more than 5V /1A adapter. During the charging process,pls be sure the card is closed. The charging time is 3~4 hours. 4. Attention: When using the card, it cannot be blended, patted and dropped.You must switch off the video first, then connect to the computer. http://www.szvideobrochure.com