We are offering mini bluetooth keyboard. 1.bluetooth v3.0, class 2.2.sniff power save mode, 3.3ma when pressed, li-battery inside, 4.with power switch and rechargeable, 5.works with windows system,windows 6.supports ipad,sony ps3, 7.keyboard size:115mmx60mmx7mm, 8.weight:120g, 9.box retail box