... but higher sensitivity;3.with wireless mouse4. Interactive advertising5. Built-in WIFI module, by optional 3G module can directly stick ... slot that can realize 3G capabilities.6. Can realize built-in NFC, bar code reader, camera, external printer, magnetic card readers and ... Life50000hoursTouch TypeNoHD DriveYes InterfaceWIFI Wireless 802.11 b/g/nKey-in InterfaceAUDIO L+R 10W*2 CATV,AV, S-VIDEO, ...