| 摘要 |
A mobile phone accessary is provided to output lights and voice such as advertisement messages in response to a control signal from an electromagnetic wave sensor, and to arouse interest in the mobile phone. A mobile phone accessary(1) includes: a transparent pad(7); a PCB substrate(12); a cap(5) having a ring(6) for connection with a mobile phone through a wire; RGB light emitting diodes(10); a control unit; a voice chip(11) where an advertisement message is preferably stored; an electromagnetic wave sensor(14) for sensing an electromagnetic wave generated when a mobile phone is in use and sending a control signal to actuate the control unit; and a speaker(9). The transparent pad has an insertion groove(8) to receive the RGB light emitting diodes, and connected firmly to the cap by pieces(3). Characters or patterns(2) are engraved on the surface of the transparent pad and illuminated by lights from the RGB light emitting diodes. |
