PLUG-IN ALERT LAMP FOR A MOBILE DEVICE

摘要

An alert lamp device includes a lamp assembly with a light emitter. A plug is insertable into an audio jack of a mobile device so as to conduct an audio signal from the mobile device to the lamp assembly so as to cause the light emitter to emit light. The lamp assembly is mounted to the plug such that the emitted light is visible from outside the audio jack when the plug is fully inserted into the audio jack.