A portable electronic device includes a housing, a cover, and a member positioned between the housing and the cover. The access ports possess a distal end which adopts an alternate shape upon the application of energy, thereby securing the access port to tissue. The conductive terminal includes a base for abutting against the corresponding terminal receiving cavity. The leather-like sheet exhibits a sufficient surface abrasion resistance and an excellent non-slip properties because of its high sweat-absorbing ability under wet conditions. The weight fraction of the blackening component is in the range between 20 and 50% by weight. The method includes forming engageable heads on the stems to form fastener elements and introducing a quantity of discrete, loose fibers to the resin.