Portable and compact, no need to plug in, battery powered, available anytime, anywhere.LD red light, cross cast line, clearly visible, high accuracy.Multi-scene applications, such as door and window installation, tile paving, wall construction, etc.If the tilt angle is within 4, it will be automatically leveled, and if it is greater than 4, the laser line will flash to remind you.The outer cover is designed with rubber, and the quality is reliable.Dry battery power supply, long-lasting battery life and easy replacement.Product Name: Portable Laser LevelMaterial: ABSLaser line: LD red lightBattery specification: No. 7 batteryLaser line wavelength: 625nm5nmSize: 64*64*66mmNet weight: 265gVisual distance: 0-18mPacking list: spirit level, storage bag, bracket, battery *3.