... .with bluetooth or USB adapter Protective slim lined leather case for the ipad with keyboard built -inProduct Features 1 perfect combination for ipad 2.use the ipad ... you can use this keyboard with most device that have bluetooth or usb adapter5.works with windows ,Mac,Linux,ipad,iphone 4G,iphone 3GS ... of 2402-2480MHZ9.Operating Distance :10 meters New bluetooth keyboard with leather case for ipad 2