Portable Wireless Bluetooth Speaker,Desxz Soundbars MP3 Support USB TF Strong Bass Stereo with Mic AUX Receiver Music Columns (Black) High-quality 45mm inner magnetic speaker, Sound processing technology, Lead you to enjoy music musical feast. Bluetooth music play,Micro SD card(TF card) music,Pen driver music,Line in music,Handfree call,FM radio,Meet all your potential needs 2000mAh built-in lithium battery,After a full charge you can play up to 12 hours(Vary depending on the operating mode). Top of speakers with an engine blade shape design,Metal mesh body,A variety of different colors. Leading Bluetooth 4.0 technology, compatible with virtually all Bluetooth-enabled devices.