Intelligent new style hearing aid usb rechargeable low-noise wide-frequency one-click sound amplifier in-ear for elderly Features: 1.The product looks like a BT headset, which can protect your privacy. You don& 39;t have to worry about discrimination anymore. 2.Fine quality material, safe and non-toxic. 3.Mini, lightweight and invisible, comfortable for long time wearing without pain. 4.Intelligent noise reduction and volume adjustable. It can greatly reduce noise, provide clear sound quality. 5.Suitable for the elderly and those people with hearing loss, helping hearing the outside sound again, regaining confidence. 6.Rechargeable design. Comes with a Charging-case for recharging the device anywhere and anytime. 7.Easy to operate and use. Specifications : Maximum OSPL 90 :