A method and apparatus for Video Telephony based on the radio signal strength in a radio terminal are provided. This nitride semiconductor light emitting element can be mounted on a circuit board, with the other main surface of the above described substrate 11 being used as the main light emitting surface. When the AP detects the loss of network connection, it automatically changes its SSID from a primary SSID to an alternative SSID. The vehicle wheel bearing is coupled to the axle for rotatably supporting the axle on a vehicle body-side member. The adjustable strap buckle fixedly coupled to the first pad connecting portion of the first strap member by the fastening member.