Bluetooth Headphones, Sweatproof Noise Isolating Earbuds, Waterproof IPX7, HD Sound with Bass, Microphone, Soft Silicone Earhooks, for Sport Running Gym Yoga Fitness Traveling Long cable reaches to where you need it Fast charging 2.1 amp For Android smartphone/tablets and other mobile devices Input: 100 - 240V, 50/60Hz AC Output: 5V, 2.1A DC