Features: 100*100mm large suction cup, support one-handed operation, with 45kg adsorption capacity. Widely application: suitable for laying 0.6-1.2m tiles. Strong motor, high vibrating frequency for high working efficiency. One button to use, force uniform, with superior performance. Comes with large capacity lithium battery, 3 hours fully-charges, can provide long lasting lifespan. Equipped with self-locking button, it can be locked without holding-down for a long time, labor-saving and convenient. Aluminum-magnesium alloy head-construction, high hardness, strong load capacity, wear resistance and with fine durability. Easy to correct the tile position, just press the handle tightly and pull back the tile. 10 gears of frequency adjustable, you can adjust it through the rotation knob easily. Specifications: Material: plastics+aluminum-magnesium alloy Battery: 2 * lithium battery, 12V, 2500mAh (included) Vibration frequency: 10-150Hz/s Suction cup diameter: 100*100mm Charge time: 180 minutes Adsorption capacity: 45kg