... mini speakerDetail products descriptionMain Features1 computer speaker,also for mobile phone, mp3,mp4,audio player2 Easy charging ... * 10.0CM * 4.5CMWhole Set Total Weight105gMain function:1, excellent tone quality,with wallyson dual channel ... 2, USB power supply.3, It is convenient for your travel ,portable, super slim and mini size, ... metal loudspeaker net Protable mini speaker with mulit- function