1. This professional tiler tool is compatible with Makita 18V batteries such as BL1850, BL1860B, BL1855, BL1840, BL1830, BL1820B, BL1815, and others (batteries not included). No longer restricted by cables, it offers greater convenience during use. 2. The tiler tool features a large 14.5 cm (5.7inch) suction cup with a maximum suction power of 200 kg/440 lbs, allowing for easy onehanded operation. It is suitable for laying tiles ranging from 0.3 to 2.4 meters in length. 3. Equipped with a quality brushless polarized motor, this tile vibrator ensures fast and stable vibration transmission. With 10 adjustable frequency levels, simply press a button to switch between 1000 16000 RPM. The vibration speed can be adjusted based on tile size and mortar thickness. 4. The handheld tile vibration device is extremely userfriendly. Its frequency vibration effectively replaces manual hammering, significantly improving work efficiency while maintaining strong suction power, making it ideal for extended working periods.