?<strong>Features:</strong><br />Amplifier with Metal sound effect.<br />Aux in jack lets you play along with your MP3 player.<br />No matter you are in the college dorms or travelling， you can enjoy your music at any time without disturbing other people.<br /><br /><strong>Specifications:</strong><br />Sound effect: Metal<br />Material: ABS<br />MP3 input jack: 3.5mm<br />Earphone jack: 3.5mm<br />Powered by: 2 * AAA batteries (not included)<br />Item size: 8.9 * 7.7 * 2.6cm / 3.5 * 3.0 * 1.0in<br />Item weight: 41g / 1.4oz<br />Package size: 15.7 * 11.8 * 2.5cm / 6.2 * 4.6 * 1.0in<br />Package weight: 64g / 2.3oz<br /><br /><strong>Package List:</strong><br />1 * Amplifier