DescriptionAre you looking for a professional, yet affordable hearing aid? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional hearing aid must meet you needs. It is one of the best choices for you.Features- Color: Black.- Material: ABS.- Size: About 6x4x1.5cm/2.4x1.6x0.6 inch.- Max sound output: 130 5dB.- Sound gain: >50dB.- Total harmonic wave distortion: <5%.- Frequency range: 300-4000Hz.- Input noise:<30dB.- Voltage: DC1.5V.- Current: <4mA.- Battery: 1 x AA or AAA battery (No included).- material with stable performance and long service time.- It has a simple design, but very practical in use.- Comfortable wearing: ear bud won't hurt your ears, offering the most comfortable wearing experience.- It is lightweight for easy and convenient to carry and storage.- Suitable for hard-of-hearing users, the deaf, the elderly, the hearing-impaired, etc.
