| 摘要 |
<p>Intercom handset for cellular phones and smartphones provided with a ferritic layer of shielding against the electromagnetic field or E.M.F. emitted by mobile phone devices. Said intercom handset can be rapidly inserted onto the cellular phone and used directly connected to the latter by means of an extensible and retractable cable, contained inside its body, or by means of a Bluetooth connection. The intercom handset can also be used separated from the phone, by means of said extensible and retractable cable, contained inside its body, or by means of a wireless connection by means of the built-in Bluetooth module, whose battery is charged by means of an inductive load system that charges the battery of said built-in Bluetooth module, using the radio transmission energy of the cellular phone or smartphone, normally dispersed in the air during the periodic search for the cellular transmission network and during the telephone conversation.</p> |
