1.4V Strong Power 2. Five-Speed Transmission Meets Demand 3. Cordless Tethering, 4. Flexible Operation 5. High Concentricity And Strong Stability 1. Name: Mini Handheld Electric Grinder 2. Electric Grinder Function: Five-Speed Electric Grinder With Light 3. Voltage: 4.2V 4. Speed: N*1000RPM/Min N:7/8.5/10/11.5/13 5. Rated Power: 30-4W 6.Power Supply Voltage: 4V 7.Battery Power:2000mAh 8.Colour:As Shown 9.Material:plastic+metal Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package Contents: 1 x Electric Grinder 5 x Chuck 4 x Sanding Paper Circle 1 x Plastic Shaft 5 x Resin Cutting Disc 5 x Drill Bits (Specifications: 0.5; 1.0; 1.5; 2.5; 3.0) 1 x Large Polished Wool Felt 1 x Small Polished Wool Felt 5 x Polished Flint Boy 3 x Cleaning Brush 2 x Grinder 2 x Connecting Rod 1 x Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.