1.Screen size: 2.4       2, Material: paper + LCD screen + Li rechargeable battery + speaker + USB port
3, Memory: 128, 256, 512MB, 1, 2 and 4GB (optional)
4, Picture format: JPG/JPEG
5.Audio format: WMA/WAV/MP3 player
6.Support video format: AVI, WMV, MP4 player, MOV, 3GP
7, On/Off switch: magnet switch/press button/light sensor/motion sensor(optional)
8, USB Port for recharging and loading
9.Built-in rechargeable lithium battery from 470mAh to 1000mAh
10,Name card size
11, Certification: CE and RoHS Directive-compliant