Mini Rechargeable Hearing Aids Digital Hearing Aid Sound Amplifier for Deafness Elderly High Power Noise Reduction

​​Features: Compact design, wearing it for a long time will not cause ear pain. Easy to operate for elderly Digital chips, Noise reduction-Anti-howling,Greatly reduce noise, providing high clear sound quality. USB Rechargeable--no need to replace battery,use anytime,anywhere Around 30 Hours to use after fully charged Specification: Material: ABS Working voltage: DC 3.7V +5%, -10% Working current: ≤ 1.4mA Frequency response: 300-5000 Hz Equivalent Input Noise: ≤29dB, +3dB Maximum Saturation Acoustic Output: ≤128dB, +3dB Size: 21mm*15mm*10mm Color: Yellow,Black Note: There could be some slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 1pc x Hearing Aid 1pc x USB cable 4pcs x Earplugs 1pc x Recharge stand Packed Safely in Retail Box.