Enjoy HD sound and Bass with this DOSS Touch Wireless Bluetooth V4.0 Portable Speaker! Equipped with capacitive touch control that makes it easy to change, pause, or rewind music. Compatible with all Bluetooth compacity device and automatically connects to the last device used. Through its built-in Li-Ion 2200mAh, it guarantees you up to 12 hours of playtime in 75% volume. Charging time is about 3-4 hours with included micro USB cable.