Wireless Speakers, ZENBRE D4 2x3W Waterproof Bluetooth 4.0 Speaker, 12 Hours Play Time and IPX5 Water-resistant, Portable Outdoor Speakers (Yellow) CSR4.0 + EDRCSR4.0 Bluetooth version lead the more fast connection and more long play time. The built-in Li-Polymer battery enhanced the long wireless playtime, perfect using in outdoor time. Stereo Crisp SoundStereo crisp sound with 3W/2IN driver and remarkable frequency response makes the incredible audio performance, high definition with more than 90db SNR boost your listening experience. Long Battery LifeBreakthrough Battery Performance by 2600mAh capacity, 10 hours from the built-in, high-capacity lithium battery. Support even to charge your phone or tablet with the 5V/1A charging port. Portable CoverA sealed port cover makes 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! Easy Taking-ClipAn ultra-pocket design type, fully portable only could be placed indoor, but also could be hold in your palm, hook at bag or bicycle, which enable to enjoy your time outdoor!