Product Specifications Wireless Version: 5.0 Operating Distance: Up To 15M Waterproof Standard: IPX6 Frequancy Range: 2.4GHZ CLASS 2 Speaker: 6 OHMS X 2 Hi-Fi Stereo Impedence: 32 Ohms TWS Earphone Battery: 85MAH Charging Base Battery: 2200 MAHSingle Use Time: 10H+-0.5H TWS earphone Charging Time: 1.5H Charging Box Charging Time: 4-5H