1. Full copper wire and temperature resistant motor, powerful and practical, ensures more stable transmission. The additional handle can be installed on either the left or right side, providing a nonslip and laborsaving experience. 2. 16 adjustable gears allow precise speed control, making it suitable for polishing, waxing, and sealing various materials. Use gears 12 for jade and porcelain, 34 for cars and furniture, and 56 for leather and flooring. 3. Lownoise transmission with higher precision and a lightweight body. / Lightweight and portable design for effortless operation. 4. Onebutton locking switch for easy use, ensuring even polishing without damaging the paint. The upper and lower ventilation design effectively dissipates heat and prevents dirt from entering the engine.