Yishengkang Sound Wave Tongluo Health Instrument is composed of six wave heads with protruding keys, which is more convenient for the blind to operate. And belong to a new patented product use by that state. Suitable for repeated use by many people.

Yishengkang Sound Wave Tongluo Health Instrument is composed of six wave heads with protruding keys, which is more convenient for the blind to operate. And belong to a new patented product use by that state. Suitable for repeated use by many people. It is an essential tool for well-off families.