... design with Engineering Plastics, it's a perfect match for your personal speaker. • 2.All-around enough functions, it's ideal for use at ... the office, home, outdoor, or anywhere else. • 3.This is an MP3 player also, and speaker for most ... . • 5.AUX audio-in for other audio sources, as laptop speaker, mobile phone speaker, etc. • 6.With earphone audio-out, can connect ...