1. Improve Hearing: This hearing amplifier for severe hearing loss uses advanced digital technology to enhance sound quality. Behind-the-ear (BTE) design with intelligent noise reduction helps distinguish sounds in different environments. 2. Comfortable Wearing: OTC noise reduction hearing amplifier is made of high-quality silicone that is soft, skin-friendly and elastic for a comfortable wear. 360° rotation, adjustable angle. There is no difference between the left ear and the right ear. Ergonomically designed and will not fall off easily. 3. Rechargeable: OTC hearing amplifiers for seniors fully charge in 2 hours and provide up to 40 hours of use. Fully refilled with a practical design and simple appearance, portable hearing aids let you hear great sounds clearly in noisy environments. 4. Compact and Portable: Hearing amplifier rechargeable is lightweight and compact, fits snugly into the ear canal, and is designed for people with mild to severe hearing loss, allowing them to experience the pleasure of clear sound. The color is skin-color close and well concealed when worn. It can help you restore your lost hearing. 5. Use scenarios: For family conversations at home, for meals in a noisy restaurant, or for outdoor walks with traffic and wind noise.