... : 128M~8GB optional Power on/off: magnetic control switch,buttons Packaging & DeliveryPackaging Details:for video brochure card EVE ... exhibitions/ Luxury invitations/ Advertising promotion,etc.2. Switch: Magnetic control switch.Open the card,power on and play video ... push button,light sensor,motion sensor, touch switch, toggle switch and self-locking switchFunctionVideo playing,image viewing,txt ...