1. 360 IMMERSIVE SOUND Feel the music like never before This portable speaker pumps razor-sharp highs, detailed mids and vibrating bass from wall to wall. It's a listening experience that is truly unparalleled.^2. Wireless connection via bluetooth Compatible with bluetooth enabled devices such as iPhone, iPod, iPad, smartphones, tablets, computers and more.^3. Built-in microphone Built-in microphone for the hands-free system for clear conference or personal calls with a radio range of approx. 10 m.^4. Long battery life and fast charging This wireless portable speaker with built-in high-performance lithium battery and subwoofer supports 5-8 hours of music playback time depending on the volume. And this portable speaker can be fully charged in 3 hours using the included USB cable. This is much faster than other outdoor wireless speakers.^5. LONG PLAYING TIME: This built-in Li-Ion 1500 mAh battery guarantees a playing time of up to 8 hours. and charge in just 2 hours with the included micro USB cable.