Systems and devices for connecting parts of a glasses frame

A glasses frame comprising:

• a front frame having a first end piece to connect to a first temple arm;
• a first electrical contact physically coupled to the front frame at the first end piece,
• the first temple arm having a first end connector to connect to the first end piece, the first end connector slideably mateable with the first end piece along a first slide path, the first end connector having a second electrical contact disposed along at least a portion of a first connection surface of the first end connector, the second electrical contact to electrically connect with the first electrical contact when the first end connector is slideably mated with the first end piece;
• a third electrical contact physically coupled to the front frame at the first end piece, the third electrical contact electrically insulated from the first electrical contact and
• the first end connector further comprising a fourth electrical contact comprising a respective elongated strip of conductive material extending along at least a respective portion of the first connection surface and oriented longitudinally along the first slide path, the fourth electrical contact electrically insulated from the second electrical contact, the fourth electrical contact to electrically connect with the third electrical contact when the first end connector is slideably mated with the first end piece.