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Used together with a call receiver, the call button (signal transmitter) WL-RC11C has been developed to send instant messaging and to improve communication processes. The call button WL-RC11C is wireless and works via radio frequency. With a comfortable necklace, it can be hung on the neck and is therefore practical and easy to reach.
The WL-SA2 is a wireless call receiver with 18 different types of beeps.
It allows setting up individual sound signals for each transmitter, thus permitting to differentiate between calls.
The signal receiver is free from registration and immediately applicable.