Music-F E-330 Wireless Speaker . Wireless Bluetooth Streaming - Wirelessly connect to smartphones or tablets to the speaker and take turns enjoying immersive stereo sound.4 hours of playtime - The built-in rechargeable Li-ion battery supports up to 3-
4 hours of playtime and effortlessly charges your device via a USB port. Splash-proof- Take to the beach or the pool without worrying about the spill.