About this item Comfort Design: Open ear earbuds are designed with ergonomics in mind. The angle of the Bluetooth headphones can be adjusted according to the size of your ear and your wearing comfort, while ensuring a firm fit. The high-quality ABS material of the ear hooks makes them comfortable to wear for long periods. HiFi Sound with Enhanced Clarity: Open ear headphones adopt 2.76 x 1.12 x 3.39 inches dynamic drivers to provide richer audio details and vivid sound. The earbuds are professionally tuned by engineers to effectively reduce distortion and improve sound accuracy. Over ear earbuds built-in HD microphone can accurately capture your voice and provide you with a clear, noise-free call experience. 80 Hours of Play Time and LED Digital Display: Wireless headphones can be used for 10 hours on a full charge and can be extended to 80 hours with the charging case. Sports headphones built-in LED power display monitors the remaining power of the charging case and the charging statu