... ,Work with all sound source with 3.5 audio interface product like : MP3 ,Computer ,mobile phone ... Tiny pocket size with room filling sound2.3.5mm audio plug ,connects to Ipod, Frequency range:90Hz ... connects to Ipod,Iphone,Mp3 and most audio devices4.built-in lithium polymer battery ,recharge through standard ... order is welcome, Pink colour beautiful high quality mini USB speaker in colour box package