This portable megaphone allows you to amplify your voice as needed. Now you can speak to big crowds of people, without straining your voice. Power features makes this the ideal gadget to have. ABS plastic housing with amplifier, USB, TF, FM radio, aux, wired Mic. With antenna. Can supports FM Radio, USB, TF, aux function. With 3" speakers, low distortion. Portable, easy to carry with button, easy to operate. With 1200mAh Li-ion battery, can play long hours. Rechargeable, you can recharge anywhere.