Hearing Assist Devices with Charging Base Features: The sound amplifier amplifies sound up to 30x. Helps you regain the pleasure of talking with other people, or enjoying TV programs, etc. Comes with 4 different sizes of silicone earcaps, not easy to slip off, very comfortable to wear even for a long time. Made of high-quality material, safe to wear without hurting ear canals. Using the included brush to remove dirt or ear wax. 4 different a mplify frequency adjustable, you can turn up the volume from low to high to meet your need. Comes with a charging base and power adapter, just place it into the base and recharge. One full charge can stand 8-10 hours of continuous use. Package List: 2 * Hearing Aid 1 * Charging Base 1 * Power Adapter 1 * English User Manual