Check the listing for details. 650nm Red Mini Stainless Steel Laser Module Fifth Gear Function 650T-200. Condition: New. Listed at 51.98 USD. Tip:This product is only used in field survival instructions, scientific research, teaching, laboratories, astronomical stars, industry and other occasions, non-professionals do not buy, children and people who do not understand the laser are strictly prohibited to contact and use this product! Please wear protective glasses during use. Note:First gear function on and off, five gear function: continuous switch can cycle low power, medium power, high power, flashover, SOS mode) Friendly reminder:It can be used as a star pen at night, the ordinary red light low power laser is too dark to be used as a pointer, and the power is too bright and too dazzling for the pointer. The fifth gear function has low-power and medium-power and high-power modes that can be used as a pointer pen and a pointer pen at night. Explosion flash or SOS call mode can be used in case of emergency. Model No.: 650T-200 Shell material: stainless steel.Exciter: copper.Focus mode: adjustable focus shape.Power supply mode: a 10440 lithium battery （The package does not contain batteries）Switch mode: tail press.Driving mode: ACC.Size specification: 101mm × 13mm PACKAGE:1PCS 650nm Mini Stainless Steel Laser Module Indicator Fifth Gear Function 650T-200（No battery）