Specifications:  Working temp: -10℃~50℃.  Material: TPC.  Accuracy: 7m±1mm.  Battery type: lithium.  Battery capacity: 4000mAh.  Laser line number: 12.  Laser line width: 2mm.  Protection grade: IP54.  Working place: indoor/outdoor.  Laser line color: green.  Working time: 7 hours.  Product size: 120*150mm.  Laser wave length: 808nm.  Slef levling range: ±3°.  Wall distance: 7mm.     Features:  -Long standby time.  -Lines can switch as you like between horizontal, vertical and cross.  -IP54 protection grade, shock-proof and water-proof,durable to use.  -In ±3°range error, the product will auto Self Leveling. Larger than 3° error, the product will alarm you with red flash light.  -Pressing OUT button for 3 senonds it can make slash.  -TPU material cover, anti shock and anti slip.  -3D leveling,multifunctional for woodworking, architecture working, etc.  - easy to operat, one key to start.  - Thick laser line supports indoor and outdoor working. Even in outdoor place the line can be seen clearly.  -Come with tripod, you can adjust the laser level line through adjust the tripod height.     Package Included:  1x laser level (tripod not included).  1x bracket.  1x charger.  1x storage bag.  2x battery.  1x user manual.  1x adapter1.  1x goggles