hearing aid for adults, young, child peoples

Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken away. 2. Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use. 3. Comfortable fit: behind the ear, it can be used for left or right ear. Provide excellent amplification effect. 4. Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service life. 5. Good performance: Whether indoor or outdoor, it can help you hear the sound clearly and clearly. Description: Elegant design, clear sound. Very suitable for listening to TV, cinema, theater, live music, etc. Specifications: Maximum sound output: 110 ± 5dB Sound gain: ≥30 dB Total harmonic distortion: ≤10% Frequency range: 300-4000 Hz Input noise: ≤40 dB Working voltage: 1.5V Working current: 4mA