This hearing-aid is safe to use, convenient and practical. It can help user hear the outside sound again, regaining confidence. Mini, lightweight and invisible, comfortable to wear. Suitable for the elderly and those people with hearing loss.<br/>Features:<br />The product looks like a BT headset, which can protect your privacy. You don&#39;t have to worry about discrimination anymore.<br />Fine quality material, safe and non-toxic.<br />Mini, lightweight and invisible, comfortable for long time wearing without pain. <br />Intelligent noise reduction and Volume adjustable. It can greatly reduce noise, provide clear sound quality.<br />Suitable for the elderly and those people with hearing loss, helping hearing the outside sound again, regaining confidence.<br />Rechargeable design. Comes with a Charging-case for recharging the device anywhere and anytime.<br />Easy to operate and use.<br/>Specifications:<br />Material: ABS<br />colour: Black <br />Maximum OSPL90: ≤120dB±3dB<br />High Frequency Average OSPL90: 103dB±4dB<br />Average Gain: 23dB±5dB<br />Frequency Response Range: 300Hz-3500Hz<br />Equivalent Input Noise Level: ≤35dB <br />Total Harmonic Distortion: ≤10%<br />Batterys:<br />* Hearing-aid(Each One): Built-in 3.7V 50mAh Li-ion Polymer Batterys<br />* Charging-case: Built-in 3.7V 300mAh Li-ion Polymer Batterys<br />Package Size: 125 * 90 * 40mm / 4.92 * 3.54 * 1.57in<br />Package Weight: 120g / 4.23ounce<br/>Package List:<br />1 Pair * Hearing-aid<br />1 * Charge Case