External laser pen of small and exquisite cell -phone

The utility model discloses an external laser pen of small and exquisite cell -phone, press drive circuit module, laser diode, lens module and outer casing including plastic cartridge head, sheetmetal, lift, the sheetmetal inlays the dress on the lower part lateral wall of plastic cartridge head symmetrically, and symmetry ground shaping is provided with a pair of auxiliary rotating identifier structure on the outer casing, its plastic cartridge head cartridge of accessible is in the earphone jack of cell -phone, and rotatory 90 degrees of laser pen makes the audio signal interface contact ofsheetmetal and earphone jack can open the use, also need not to extract the laser pen from the earphone jack of cell -phone when not using, and rotatory 90 degrees of laser pen makes the audio signalinterface of sheetmetal and earphone jack break away from and can close, passes through auxiliary rotating identifier structure discernment rotation angle when rotatory, need not applied power source,having and to use in the e