Item Type: Hearing Amplifier <br>Material: ABS <br>Maximum Sound Output: ≤ 115±3db <br>Gain of Hfa: ≥ 28db±5db <br>Total Harmonic Distortion: ≤5% <br>Frequency Range: 260-5000Hz <br>Noise: ≤32dB <br>Current: ≤2mA <br>Type of Earphone: Lithium Battery <br>Headphone Battery: 35mAh (included) <br>Battery in Charging Compartment: 300mAh (included)1、Premium Material: Hearing amplifiers are made of medical grade silicone, non toxic and tasteless, anti aging, wear resistant, and highly resilient. <br>2、Superior Sound Quality: Hearing amplifiers using imported chips, excellent sound quality, stable transmission, prevent whistling and reduce noise. <br>3、Bionic Design: Hearing amplifier aid adopts skin color shape, bionic design. Ergonomic design, fit the contour of the ear, not easy to fall off. <br>4、Universal to Use: Hearing amplifier aid comes with different sizes of earplugs to fit everyone. The small size and light weight make it stress free to wear. <br>5、Restoring Hearing: Digital hearing aid helps you to restore your hearing and resume your normal life, watching movies, music and TV shows etc.<div>2 x&nbsp;Hearing Amplifier</div><div>4 x Ear Cover</div><div>1 x Manual</div><div>1 x Charging Line</div><div>1 x Charging Bin&nbsp;</div>