... -BP-103Size :23X153mmBattery:18650# OR 16530,3.7V,rechargeable batteriesFigures: single beam(Adjustable focal + All over the sky effect)+With a lock ... switchSingle beam:Star instrucction at light, Outdoor instruction, Building instruction, MuseumStar sky ... .) Remark1.Do not look into the aperture of the laser beam, and do not aim into eye!2.Do not take ...