Featuresr graceful form this speaker makes an elegant addition to any room in your homer bluetooth potable 3w speaker high quality wireless stereo speaker support micro tf cardr 35mm aux input can be used indoor or outdoor compatible for most of digital equipment with bluetoothr built in 800mah battery big battery39s capacity and long working time it can work for about 10 hours the volume will affect the time the lighting mode also do after fully charge for about 4 hoursr sup