Bring your music along with the ZOOOK Rocker ThunderStone Portable Bluetooth Speaker System with a classy 'Retro' look. Enjoy wireless music streaming with built-in Bluetooth. You'll have lightweight, portable, and powerful access to instant streaming music ability. Listen to even more of your favorite digital audio files thanks to the USB flash drive readers. The Aux-in jack allows you to make good of your old but favorite media player. Additional features of the Rocker ThunderStone includes FM Radio, Digital LCD Display, AUX (3.5mm) Input. It also has 24 Watts Output level and a rechargeable battery of 2400mAh that lasts up to 4 hours hence you can enjoy endless entertainment everywhere you. You can double the sound output with the new Twin Pairing two of the Thunderstone speakers wirelessly. Like to sing? we got you covered with a microphone included for Karaoke nights with friends and family.