Enhanced Voice Clarity: Specifically designed for the elderly, this compact voice amplifier enhances speech clarity, making everyday communication clearer and more enjoyable Design: Built to last, the device features a robust construction that withstands daily use while being small enough to carry in a pocket Large LCD Screen: Equipped with a large, easy-to-read LCD screen that displays settings clearly, facilitating effortless adjustments even in low light conditions Color: Sleek black that suits any setting, whether watching movies, enjoying drama, attending meetings, or having class; it helps you hear sound clearly and loudly Adjust volume to the minimum before wearing. Increase volume gradually to avoid sudden increase in sound Specifications Max sound output: 110 dB Sound gain: 30 dB Total harmonic wave distortion: 10% Frequency range: 300-4000 Hz Input noise: 40 dB Voltage: DC 1.5 V Current: 4 mA Due to different batches, there may be differences in product appearance and printed text, which do not affect use Material: ABS Color: Black Package Contents: 1 x Voice Amplifier Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm