... Speaker, Applicable for ipod, MP4 Player, Laptop, PC and More.With special particular patent in worldwide. Be applicable for MP3, MP4, ... 0.5V Suitable temperature: 0 - 40 C Be applicable for MP3, MP4, laptop, PC, MD, mobile phone, ... it easy to use Built-in rechargeable lithium battery with high capacity, protected by multiple electro circuit ... will be the best choice for your journey speaker for ipod