Anker portable Bluetooth4.2 speaker 24-hour continuous playback dual driver / wireless speaker / built-in microphone installed (black)

High quality sound: Enjoy your music in high quality stereo with dual drivers and a patented spiral bass port. Sound distortion is reduced to less than one percent, resulting in crystal-clear sound that sounds as if it were played on the spot.;Amazing Continuous Playback Time: The built-in lithium-ion battery and industry-leading power-saving technology allows for 24 hours / 500 songs of continuous playback. It's perfect for outdoor activities and travel. The battery level can also be checked from a paired iPhone or iPad (*Only compatible with devices running iOS 6 or higher).;Bluetooth 4.2: Compatible with all Bluetooth devices. Immediately connects to smartphones and tablets within approximately 20 meters. Remembers the last device used and reconnects automatically. The built-in microphone can be used for hands-free calls.