Specifications: Product size: 6.5*6.1*5.3cm Product weight: 190g Packing size: 19.5*20.5*7cm Total packaging weight: 740g Best engraving height: the distance between the laser head and the engraved object is about 20cm Engraving area: 10*10cm Laser source OSRAM 450nm blue light, service life of at least 10,000 hours; Laser power: 1.6W Appearance: Aluminum alloy anodizing Operation: Mobile APP APP connection method: Bluetooth connection Bluetooth version: Bluetooth 4.0 and above APP operating system: support IOS 9.0+/Android 5.0+ Power input: type-c (5V, 2A) Operating temperature range: 0 ° C ~ 65 ° C Operating humidity range: 5%~80% (non-condensing condensation) Safety certification: IEC60825-1 (laser level safety specification), CE, RoHS, FCC, FDA CDRH registration, IEC60825-1 (laser level 4)