Mini rechargeable hearing aid digital BTE hearing aids for seniors. Two types of earplugs (closed and open) are available. It has a full-frequency intelligent noise processing system, which can be worn in different working and living environments. From H2 to H10, it provides 6dB to 12dB of different noise processing capabilities. Two multi-function buttons, adjustable volume and program switch, prefabricated 2 to 4 listening programs (universal, clear, soft, masking tinnitus), easy to switch. The cyclic rechargeable design solves the worry of purchasing batteries. The functions (volume, program and sleep) of the button control can be realized according to the different time (1S, 2S and 5S) to avoid the inconvenience of starting and debugging each time.