Rugged and durable,With two-color injection molding process and TPE environmental protection materials,high elasticity,shock absorption,dust resistance and dustproof.Even accidentally drop from a height of 1 meter,still intact and very durable.F52 internal magnetic full-frequency dual speakers.Total harmonic distortion of less than 1% with powerful stereo and independent bass.Amazing sound even at the highest volume.Wherever you are, demand more from your sound and enjoy home theater quality sound in a robust and compact package.Built-in 18.5wh-5000mAh battery, playtime up to 20+ hours when fully charged,can charge smartphones,tablets or other USB charging devices. the solar speaker is still working when it is charging other devices.Built-in 27 LEDs lights,make it easy to deal with nights!