<p>Mini Hearing Aids for Seniors with Noise Cancelling, Comfortable Lightweight Hearing Devices Sound Voice Amplifier</p> <p>Light Weight and Invisible - Mini hearing aids with small size 16mm and lightweight 2g , no burden for ears for long time using. This hearing aids smaller than a pistachio ,completely invisible when you wear it .</p> <p>Comfortable Stable - According to the study of a large number of human ear contour data, the wearing form of hearing aid is redesigned to make the hearing aid fit the auricle and make it more stable , comfortable and lighter to wear .</p> <p>Noise Reduction - With a built in intelligent noise reduction chip, this hearing aids provide nature sound ,share beautiful voice with your loved.</p> <p>Easy To Operate - Easy to operate for seniors adults ,only three steps ,put into battery first , and then switch to on \/off button ,finally rotate the volume button to adjust volume level according to your requirement .</p> <p>Durable Battery Hearing Aids - This pair hearing aids amplifiers comes equipped with replaceable A10 Zinc air battery .it can continue use up to 72-96 hours .</p> <p>1. OSPL90: 112dB+3dB</p> <p>2. Output sound pressure level (high-frequency average): 108dB 4dB</p> <p>3. Full range sound gain (largest gain): 35dB 5dB</p> <p>4. Full range sound gain (average gain): 30dB 5dB</p> <p>5. Equivalent input noise level: 29dB+3dB</p> <p>6. Frequency response range: 400Hz~4600Hz</p> <p>7. Total harmonic distortion: 10%</p> <p>8. Environmentally friendly button type battery: A10\/PR536 (one zinc air battery) Capacity: 95mAh</p> <p>9. Rated power supply current consumption: 2.5mA</p> <p>Size: 1.6*1.6*1 cm</p> <p>Package Included: 1 Pc Of hearing aid</p>