... rechargeable lithium-ion battery, it can be used in laptop, tablet PC, smartphone, Google TV, HTPC, etc.Features:* 84 keys ... and pleasing typing experience* It can be used in laptop, tablet PC, smartphone, Google TV, HTPC, etcSpecifications:* Color: Black* Working voltage ... with the bluetooth module.Support mobile system: Google Android, Apple IOS 4 or later, Microsoft Windows Mobile 5.0 or later ...