This high quality portable speaker full-metal housing enables you to enjoy your favourite music anywhere and anytime! Due to the integrated battery you are independent from the electrical outlet. Just simply connect your PC, laptop, MP3 player, ipod/iphone/ipad, smartphone or phone to the speaker and you are ready to go. Low-frequency enhancement and anti-breaking sounds technology provide excellent performance. Moreover, the speaker is based on a patented sound technology and on a special acoustic design structure which uses air compression to boost sound quality. With this, the product is able to produce sound at the highest volume without any distortion, while maintaining music quality at the lowest volume.