BlitzWolf Portable Wireless Speakers, 2X5W 2000mAh IPX5 Water-Resistant Hands Free Wireless MP3 Music Player for Outdoor Activity Yellow 2*5W Powerful Speakers -- Built with 18 core 50mm 5W*2 speakers, playing with HiFi crystal clear sound quality and robust bass that you can hardly find better one of the same configuration. 8 Hours Working Time -- Keep working for up to 8 hours per charge with the 2000mAh Lithium battery with 70% volume. IPX5 Water-Resistant -- A must-have outdoor music player with IPX5 water resistibility, built in Water-Resistant Mic shock proof and Water-resistant TPU shell, constructed as you can see from the appearance. Hands Free & AUX Port -- Noise reduction and a watertight seal the handsfree function, answer phone call by pushing hands free button, you can also connect the speaker with any of your devices with audio cable(Package included). Lifetime Quality Care -- BlitzWolf awards 30 days money free back, 18 months seller warranty and lifetime dedicating support to assure your long term enjoyment.