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 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 or Adjust volume to the minimum before wearing Increase volume gradually to avoid sudden increase in sound Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly Specifications Max sound output: 110±5dB Sound gain: ≥30dB Total harmonic wave distortion: ≤10% Frequency range: 300-4000Hz Input noise: ≤40dB Voltage: DC1.5V Current: ≤4mA Due to different batches, there may be differences in product appearance and printed text, which 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.