These are the rechargeable hearing aids with a contoured in-canal design that allows them to be discreetly worn. These in-ear units provide six volume settings that can be easily adjusted with simple buttons. They also have active noise reduction to minimize non-voice sounds such as air conditioners, fans, and traffic and four different environment settings (standard, restaurant, outdoor, music). Includes two hearing aids and three pairs of different sized tips. A full charge using the included case provides up to 36 hours of power. Case plugs into USB.