3 VARIABLE SPEED ADJUSTMENT - Equipped with the 3-speed model: 5000 rpm, 10000 rpm and 15000 rpm allows you to adjust the rotation speed according to different DIY working situations. DIVERSITY ROTARY TOOL ACCESSORIES - With 24pcs accessory kit which can be used for various kinds of home and craft projects such as sanding , grinding, cutting, polishing, drilling and more. USB CONNECTOR FOR CONVENIENT CHARGING - 2 hours charge for 90 minutes continuous work, 3.7V rechargeable lithium battery for safe operation and long life. COMPACT AND EASY - Cordless construction of the turning tool kit allows use anywhere without a power outlet and its compact size makes it easy to handle with less fatigue. WHAT YOU GET - Kozzy MRT22DC 3.7V Li-ion Battery Rotary Tool; 24pcs accessories in one case; USB connector; User manual Technical specifications: Clamp size: 3mm Rated voltage: 3.7V Idle speed: 5000RPM, 10000RPM, 15000RPMCharging time: 2 hours Battery type: Lithium-ion, built-in Charger voltage: 5V DC (USB) What's in the box: Cordless drill/driver 3.7V lithium-ion 1x user manual - 1x USB connector 1x accessory kit for 24pcs