1. This hearing aid is specially designed for the elderly or people with hearing problems, suitable for those people or patients with hearing loss. 2. Low power consumption, high fidelity, high-quality chips, and invisible flesh-colored surface will not appear incongruous in the crowd. 3. With volume control function, the volume can be adjusted to meet your own needs and preferences. 4. Built-in button battery power supply, simpler, more convenient, more powerful and more stable. 5. Double noise reduction technology, natural sound, bring you a comfortable experience. 6. Ergonomic earplug design, even if you wear it for a long time, you will not feel pain. 7. Specifications: - Power supply: button battery EL44/E675 - Voltage: DC3.7V - Output: 130db - Battery life: 600 hours
