The Tang series of custom-made machines adopts an all-digital cloud listening platform with up to 20 adjustable channels, instantaneous noise blocking and wind noise blocking functions, which are able to intelligently identify and cope with a variety of noise environments, and can also be personalised with customised shells according to your ear canals, so that the hearing aids fit into the ear canals, and are comfortable to wear, firm and discreet, and there are also a wide range of model colours and alert tones to choose from.