BlitzWolf Mini Wireless Speakers Waterproof IP65, 2000mAh 5W Portable Hands Free Music Player with 4.0, 3.5mm Aux, Water-Resistant MP3 Outdoor Speakers Blue Hands Free & 3.5mm AUX Port -- Answer phone call by pushing hands free button, you can also connect the speaker with any of your devices with audio cable like 3.5mm AUX (Package included). 8 Hours Working Time -- Keep working for up to 8 hours per charge with the Built-in 2000mAh rechargeable lithium battery with 70% volume. IP65 Water-Resistant and Shockproof-- This Wireless speaker is not afraid of getting wet, dropped or left in the elements. Its sealed structure gives it an IP65 water-resistant rating and can easily handle an active outdoors lifestyle. 5W Powerful Loud Speakers -- Built with 50mm 5W speakers, playing with HiFi crystal clear sound quality for your party. Product weight:286g; Dimension:0.32ft x 0.30ft x 0.16ft; Charging Time: 3~4 hours; Working Time: 8~10 hours; Transmission Range:  10m/33 ft Lifetime Quality Care -- BlitzWolf awards 30 days money free back, 18 months seller warranty and lifetime dedicating support to assure your long term enjoyment.