A device and assembly comprising such device having a support for electronic connection, holding in contact, and attachment of at least two accessories to each other and/or to an external device, and said at least two accessories.
To make said connection, the support is provided with at least two first magnetic electronic connection elements. Each other by wire and each accessory is fitted with a second magnetic connection element capable of cooperating with one of said first magnetic elements, and in that each of the first and second magnetic elements comprises at least two groups each comprising at least one magnet, namely a group of one or more positive magnets and a group of one or more negative magnets, the groups of one particular magnetic element being fixed directly or indirectly on the same flexible or rigid plate and/or to each other and being capable of cooperating with the other magnetic element.