... save lock on the shell, password function.5.Built-in speaker6.In sync photo and music play7.All-weather proof,water ... *Dust-proof, explosive proof*Durability:5years Application:1. Business Organizations: Supermarket, shopping malls, exclusive agency, chain shops, large-scale sales, ... gas stations, toll stations, bookstores, parks, exhibition hall. network supported stand alone sleeping kiosk display