Bluetooth Headphones, Wireless Headphones, TOTU Sweatproof High Fidelity Stereo Bluetooth Earbuds Lightweight Noise Canceling Wireless Earbuds Fit Workout Built-in Magnet [Incredible Sound Quality]  APTX codec offers premium audio sound quality. Bluetooth 4.1 technology enables quick transmission and seamless music streaming. These headphones are widely compatible with most cell phones, tablets etc. [Built-in Magnets & Lightweight]  With built-in magnets, you can easily hang your earbuds around your neck like a necklace when they are not in use. Weighing only 0.56 oz. net weight, you can barely feel anything when wearing it. These earbuds are a grea [Long-lasting Battery & Super-Comfortable Wearing Experience]  Up to 8 hours talk or music time, or 175 hours stand-by time with 2 hours charging. With customizable accessories, it makes a secure fit for all shapes and sizes. [CVC Noise Canceling & Sweat Resistant]  With CVC noise reduction technology, these headphones create a clearer listening and calling environment for you. IPX5 sweat resistant design ensure a secure and safe experience when your work out in a rainy day. [Inserted Mic & Volume Control] With inserted Mic and volume control, these wireless headphones enable you to make a hands-free phone call, switch music and adjust the volume instantly. TOTU provides a one-year warranty and exceptional customer service.