1、Anti-seismic, drop-resistant, multi-protection for super quality. 2、Aluminum alloy anti-fall ground plate, laser enhanced function makes construction more convenient. 3、The laser line has higher brightness, farther projection distance, centered with the enhanced point cross, and maintains the vertical accuracy when laser-enhanced points are used outdoors, making construction easier. 4、Automatic photoacoustic alarm, leveling function, when the plane placed by the level is not flat, the level will automatically alarm. 5、It is stable and has great performance while using. Features: Anti-seismic, drop-resistant, multi-protection for super quality. Aluminum alloy anti-fall ground plate, laser enhanced function makes construction more convenient. The laser line has higher brightness, farther projection distance, centered with the enhanced point cross, and maintains the vertical accuracy when laser-enhanced points are used outdoors, making construction easier.  Automatic photoacoustic alarm, leveling function, when the plane placed by the level is not flat, the level will automatically alarm. It is stable and has great performance while using. Specification: LD Green Light  2 Line 2 Point Battery:18650(3000mah) Plug:EU Plug Voltage:100~240V Package List: 1*Main Unit 1*Green Light Glasses 1*Power Cord 1*Battery Charging Base 2*18650 Battery