Speaker, Applicable for ipod, MP4 Player, Laptop, PC and More.With special particular patent in worldwide. Be applicable for MP3, MP4, laptop, PC, MD, mobile phone, ... rights of magnet portable technique Built in magnet inside the speaker case, that will combine the 2 speakers together, ... 5V +0.5V Suitable temperature: 0 - 40 C Be applicable for MP3, MP4, laptop, PC, MD, mobile phone, and more With the ...