Portable Speakers, Leadzm Waterproof Bluetooth Speakers, Special Forces-SF470, 4.1 Waterproof Sport Portable Wireless Speaker & Mount for Outdoor Sports Travel Bicycle Cycling Activities Speaker Advanced 4.1 technology provides stutter-free wireless music streaming and seamless high clarity audio SF470 sound, the Bluetooth speaker performance is spectacular, it has excellent clarity and you can hear the separation between instruments and vocals as if they're coming out of different speakers. The bass is not earth shattering but it does sound good and punchy for a speaker of this size and with no distortions at high volumes IPX65 waterproof level make sure your best enjoying on hiking, sporting, traveling and on beach as well! A touch friendly silicone cover, more safe when dropped or falling down, so safe and surf! Special Forces-SF470 is a compact Bluetooth speaker that can be wirelessly connected to Bluetooth devices such as smartphones, tablets and computers to play back any music collection stored on them. Thanks to the powerful battery and passive radiator, the system delivers full stereo sound. Different from other mains supply, it can support about 6 to8 hours' play time and is the perfect companion for you hang around in the park, while camping or on the beach. The process control helps you get rid of complicated connections and wiring distance constraints. Therefore, users can enjoy high-quality music anytime and anywhere.