Description: Portable Digital Hearing Aid (DHA) based on STM32L4 microcontroller. It brings natural-sounding speech and audio enriched with depth and variation of sound along with this device makes some sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities. Our company provides a ‘Low-cost battery operated DHA card for OEM’ whose hearing experience solves different types of hearing losses. It will enhance your comfort and feeling of confident communication.