Cannice Y4S In Ear Waterproof Ipx4 Sport Dual Batteries Wireless Bluetooth 41 Headphone Earphone

English manual you can see from the link : Muscular Curve Makes Sport Powerful Surface of headset according with the ridge of aerodynamics, which will let you easy to feel the speeding of workout through airflow, industrial mechanization and muscular curve gives person a powerful feeling and makes sport more passionate. Incredible Sound Makes Sport More Passionate Wireless Sport Y4 is designed to direct sound straight into your ears for deep bass and rich audio. Allow you to hear your music in a surrounding environment, lose yourself in your workout with serious sound and powerful bass. In-Ear Acoustic Cavity Structure In-ear acoustic cavity structure furthest reduces the blockage of sound. A small drive is designed inserting into the front cavity directly to take the sound closer to your ears, bass becomes more powerful and inpulsive than others. The independent rear cavity raises the active area of the diaphragm largely, medium-high frequency do better to make total sound effect more Lees meer over de Cannice Y4S In Ear Waterproof Ipx4 Sport Dual Batteries Wireless Bluetooth 41 Headphone Earphone van huismerk in de productgroep earbud headphones