* Laser pen is convenient tool for teaching and conference, can print the logo on as promotional item. * Approval : CE, FDA * Size: 13.4 x 10 x 0.5cm * battery: LR41 x 3pcs * Wavelength: 635nm/ 650nm
* Laser pen is convenient tool for teaching and conference, can print the logo on as promotional item. * Approval : CE, FDA * Size: 13.4 x 10 x 0.5cm * battery: LR41 x 3pcs * Wavelength: 635nm/ 650nm