Astonishing Sound Quality2*10 W powerful & sensitive drivers plus radiator that delivers a room-filling stereo sound with great clarity and less distortion. Enjoy your 360solo concert. Long Lasting PlaytimeBuilt-in large capacity battery for a long lasting music playing, up to 500songs playtime under a full charge. Also as a backup phone battery pack for recharge. IPX4 Water-resistant Portable SpeakerPortable, yet robust design with splash proof & dustproof and drop proof feature provides excellent audio for anywhere. Stable Bluetooth ConnectionCSR 5.0 version ensure a instant effortless connectivity in 66ft. Worry-free Warranty provides a 12 months warranty & 24 hours services for all of our customers. Your satisfaction is our pursuit.