The Nicewin ZR-G400 hearing aids are rechargeable and come in a set of 2, designed for adults with both ears to be fitted. These in-the-ear devices in red+blue color feature digital sound processing and a rechargeable battery power source. The kit includes a hearing aid case and wax guards, making it convenient for daily use. Made in China, this unit offers 4 settings and is designed for easy handling and comfort.