Single Ear Hearing Aid for Elderly Sound Amplifier Noise Reduction Sound Collector Rechargeable Hearing Aid for Seniors

EASY USE AND COMFORTABLE WEAR: Our rechargeable hearing aids are easy to use, durable material and comfortable to wear in either of the ears. RECHARGEABLE FEATURE: Our hearing aid runs with high quality lithium battery, which saves your trouble to buy button batteries frequently. It can be used for 20-24 hours after charging 4 hours. It can be charged via USB cable, you are able to charge anytime and anywhere you want. FULLY UPGRADE: 4 channels signal processing, with 4 independent compression-amplification channels, the received sound is divided into different, frequency regions for separate analysis, processing and recurring, speech noise synchronization detection optimization adaptive, layered noise reduction to reduce background noise, acoustic feedback cancellation.