his EWA A103 mini portable speaker has a metal mesh cover to protect the speaker from dust, and shock. It has 5-watt horns with a bass diaphragm, so you can listen to music with a lot of basses. It can use the buttons to turn on/off / play/pause / switch modes / skip songs, and adjust the volume. Supports AUX and can be connected to any 3.5mm jack audio devices, such as cellphones, MP3 / MP4 / laptops, and PC. On a full charge, the 500mAh battery provides up to 10 hours of playtime at 2 / 3 volume.