Accessory unit for use with mobile phone, has mobile phone theft and forgetting protection implementing device notifying external signal unit about theft and forgetting by acoustic, visual or mechanical signaling

摘要

The unit has a mobile phone theft and forgetting protection implementing device notifying an external signal unit about theft and forgetting by acoustic, visual or mechanical signaling with the exceeding of a radio operating range of a data communication interface between the signal unit and the phone. The signal unit has a plug connection in an inner side, where an ear phone cable of a music player is plugged into the signal unit.