An accessory device comprising: an enclosure; one or more electrical components positioned within or attached to the enclosure; an attachment feature connected to the enclosure and configured to magnetically couple the accessory device with the electronic device, the attachment feature comprising: an exterior surface; a corresponding plurality of openings formed through the exterior surface; a plurality of movable contacts corresponding in number to the plurality of openings, each movable contact extending out of one of the plurality of openings; one or more biasing members operatively coupled to the plurality of movable contacts to bias the contacts such that a contacting portion of each contact protrudes beyond the exterior surface of the attachment feature through its respective opening; and an alignment feature comprising at least one magnet positioned adjacent to the plurality of openings.