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Used together with a call receiver, the call button (signal transmitter) YK200-1D has been developed to send instant messaging and to improve communication processes.
The wireless call button YK200-1D works via radio frequency.
Its use is intended, for example, for elderly people or in clinics that have a call service.
With an easily removable/replaceable wrist strap, it can be worn on the wrist and is therefore practical and easy to reach.
