|  | Radio and telecommunication terminal equipment (R&TTE) R&TTE contains equipment like DECT, Bluetooth, GSM, wireless bells, PMR (mobile voice radio), radio remote controls etc.R&TTE equipment is mainly equipment used for the transmission of electromagnetical waves according to defined frquencies or frequency ranges.
 They can be connected to the supply mains (AC 230V~), but also be fed by batteries.
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