Abstract: A wire strain relief system adapted to support wires in a terminal block. A wire may be retained and supported by the wire strain relief system. By retaining and supporting the wire, stress and/or strain on the wire and a connection joint between a terminal and the wire may be reduced, compared to terminal blocks without wire strain relief systems.

Abstract: Folding wireless communication devices (100, 700) comprise first parts (102, 1002) that are rotatably coupled to second parts (104, 1104). The first parts (102, 1002) can be moved from first positions in which the first parts (102, 1002) overlie the second parts (104, 1104) to second positions in which the first parts (102, 1002) extend upward away from the second parts (104, 1104). The first parts (102, 1002) comprise one or more buttons (302, 304, 306, 308 1010, 1012), e.g., a pair of directional buttons, such as “UP” and “DOWN” control buttons (302, 304, 1010, 1012). Hardware and/or software is used to change the function of the buttons (302, 304, 306, 308 1010, 1012) depending on the position of the first parts (102, 1002).