Combination of compartments ： The combination of 40M and 5M rangefinder tape measure, self-locking tape measure, high-end black and white reverse display, the results are more visible! p Tape measure ： Accuracy: ± 1.5mm, band width 17mm, stretch length 5m. Flexible "One Key" return with magnet; Nylon coating covered, completely resistant to wear. Laser rangefinder ： Accuracy: ± 2mm; m / ft / in switchable; Continuous measurement, just move the device within the valid range to get the exact result. The double photosensitive aperture apparently improves the stability of the measurement. Class II Laser, two working modes make it more convenient for field applications. USB rechargeable ： Built-in rechargeable lithium battery for longer life, maximum power state can be used continuously for 5 hours, rechargeable by USB, can be recycled, reduce battery, save money and worry. Other supported functions ： 1. Manual calibration automatically adjusts the accuracy of the laser. 2. Switch between front and rear references. 3. The laser turns off automatically after 30 seconds of inactivity. After 180 s (3 minutes) of non-use, the screen will automatically turn off to save power. Features: 1. The combination of manual measuring tape measure and automatic laser measuring device. 2. Manual calibration, you can self-regulate the laser precision. 3. The measurement reference point is from the back of the laser meter. 4. Automatic shutdown. The laser turns off automatically after 30 seconds of inactivity. After 180 seconds of inactivity, the screen will automatically turn off to save power. 5. Laser class, II. Complies with safety standards. Features: Laser measurement mode: distance, area. Waterproof and dustproof: IP54. Technical characteristics: Length of the tape measure: 5 m. Ribbon width: 17 mm. The tape measure can stand straight over a length of 5 m. Laser range: 40 m - Accuracy: ± 2 mm Laser output power: lt; 1 mW. Laser class: II. Note: Please avoid direct hits between the laser light and its eyes. Package List 1 Meter Hanmer Laser. 1 USB cable. 1 user manual (French not guaranteed). Safety Warning Please avoid direct hits between the light laser and eyes Note: this does not include other things, the color is based on the first picture, and the other pictures only show the effect Due differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you