... powered, cables and batteries sold separatelyWireless Tech: InteractionOutput Power: 2W * 2Batteries: AA * 3DC in: ... and Android smartphones and MP3 players with external speakers) in the correct orientation on ... for mobile phone,mp3,mp4 BOOSE Speaker for mobile phone,iphone,mp3,mp4 Speaker for mobile phone,mp3,mp4,iPad BOOSE Mini Speaker for mobile phone Mini portable amplifier Speaker for mobile phone ...