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Used together with a call receiver, the call button (signal transmitter) APE350 has been developed to send instant messaging and to improve communication processes.
The call transmitter APE350 is wireless and works via radio frequency.
It can be used as a 5in1 transmitter (5 single buttons) or as a multifunctional transmitter, where each button will indicate one function (e.g.: service, order, drinks, pay, cancel).