Multipurpose piece which can be attached to a mobile phone and is equipped with spectacles, a writing instrument and a folding support

A protective casing for a mobile phone, the protective casing comprising:

• a multipurpose device attached or attachable thereto;
• wherein the multipurpose device comprises:
• an accessory provided with cavities, the accessory comprising at least one attachment element for attachment of the multipurpose device to a mobile phone;
• wherein the multipurpose device is hollow and comprises a prismatic shape;
• wherein the multipurpose device comprises:
• a first cavity adapted to receive glasses;
• a second cavity adapted to receive a writing device;
• at least one recess adapted for reaching a device held in one or both of the first and second cavities;
• and
• a lightening of material of the multipurpose device or a window with no material of the multipurpose device for a lens of the mobile phone.

A mobile phone comprising:

• a multipurpose device attachable to the mobile phone, and a lens;
• wherein the multipurpose device is hollow and comprises a prismatic shape;
• wherein the multipurpose device comprises:
• a first cavity adapted to receive glasses;
• a second cavity adapted to receive a writing device;
• at least one recess adapted for reaching a device held in one or both of the first and second cavities;
• and
• a lightening of material of the multipurpose device or a window with no material of the multipurpose device at least at a portion of the mobile phone where the lens is arranged.