Description/Features: 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 Sleek black color that suits any setting, whether watching movies, enjoying drama, attending meetings, or participating in classes; 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: 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.