Measy Wireless 2.4G Bidirectional Voice Keyboard and Remote Control RC13 Wireless 2.4G Bidirectional Voice Keyboard; Remote Control It's consists of Wireless, Keyboard, Multimedia Speaker and Skype Phone. Compatible with windows, Android, MAC and LUNIX OS Can be used for Computers, Projectors, Smart TV, HTPC, Android Tablet PC, Android HD media players and Android Boxes Lithium battery design, one earphone jack.