This speaker has a 3.5mm plug that you can easily connect to your MP3 player or mobile phone. The speaker is powered by 3x AAA batteries (not included) or via a USB cable (incl.). The speaker is also equipped with a volume control and a LED light that lights up when the speaker is switched on. Features: Specification: Available: BasicXL Portable Kitty Speaker (BXL-AS14) BasicXL Portable Koala Speaker (BXL-AS10) BasicXL Portable Panda Speaker (BXL-AS15) BasicXL Portable Piggy Speaker (BXL-AS13) BasicXL Portable Rabbit Speaker (BXL-AS12) BasicXL Portable Teddy Bear Speaker (BXL-AS11) ...Contact us if you need more help.