Open-Ear Design Stay aware of your surroundings while listening. Safer for running, biking, and commuting. Secure & Sweatproof Fit Ergonomic earhooks stay in place during activity. IPX5 waterproof for sweat and light rain.
Could be found on google, search "Beats by Dre Powerbeats 4 High-Performance Wireless Manual". High-performance wireless earphones. Reinforced, sleek design for sweat & water resistance during tough workouts or running.
"Bass booster" that conveys the deep bass groove feeling. Bass Boost: Sony's Powered Bass Duct++ technology provides you with deep receptive bass and powerful sub-bass, which makes it great for genres of music that are low-end focused styles.
