1. Battery Belt Sander Compatibility: The battery belt sander is compatible with Makita 18V batteries (battery and charger not included), such as BL1830, BL1830B, BL1840, BL1840B, BL1850, and BL1860B. Note: During installation, you must first press the sanding belt slide down to unlock it before mounting the sanding belt. 2. Wireless Design: The wireless design of this belt sander eliminates tangled cables and limited movement, making it easier to reach tight spaces. It is suitable for onsite work or projects in hardtoaccess areas. 3. 6 Speeds 35° Adjustable Sanding Arm: Powered by a quality 300W pure copper motor, this belt sander offers 6 adjustable speeds, delivering 10001600 FPM. The narrow sanding arm can be adjusted by 35°, enabling you to work in deep gaps and hardtoreach areas to suit various usage scenarios. 4. Tool Belt Change: It has a quickchange system that allows you to remove sanding belts by simply pressing the sanding arm. The sander uses 330 × 10 mm sanding belts and comes with 3 belts (grit 80, 120, 170). Changing the belt is fast and tool.