Green Laser Keychain with Starry Tip 1.Battery:1 x AAA ... output: 5mw,10mw,20mw,30mw,50mw Features: Green Laser Keychain with Starry Tip * With star pattern & rotate front pattern tip ... in the sky* Remove the cap become a standard green laser pointer*Wavelength : 532 mn * Gift box dimension ... x 47 x 22 (mm)* Technical Parameter: Fixed focus, green dot facula* Output Power: 5mw,10mw,20mw,30mw,50mw ...