Item comes with normal USB & micro USB OTG,if your tablet is mini USB,OTG needs to be purchased seperately. Item doesn’t have back camera or speaker hole and for its usage the tablet needs to be removed from cover.this premium leather tablet keyboard case is the ideal accessory to turn your tablet into a mini laptop.simply plug the USB cable into your tablet and you can instantly start typing out emails, message your friends, and write/edit your documents, using the keyboard. The keyboard itself is "Plug and play" Which means that it will work on any tablet and requires no configuration, start up or external power source. As soon as you plug it in you are ready to go.made from leather - a synthetic leather often used to make leather shoes and handbags, the case is both durable and easy to clean. The high quality white stitching surrounding the case gives it an excellent all-round finish, creating a professional, stylish look.