Lenovo ThinkBook Bluetooth Wireless Dual Mode Interactive Design Mouse 1. Material: plastic 2. DPI: 160024003200DPI, default value 1600 3. Surface treatment: rubber paint skin coating 4. Battery: AAx2 (not included) 5. Adapt to the ThinkBook family's new PC-based interaction modes; switch between BeastSmartEnergy-saving modes by pressing a combination of buttons. 6. Eliminates discomfort and reduces stress on the wrist. 7. Fits the contours of different users' hands with soft skin-like material side grip slots. 8. Long press on the back pairing button for 3 seconds to enter Bluetooth pairing mode. 9. Side front button + dpi combination button for dual device switching. 10. Easily connect to two devices via Bluetooth wireless technology or USB 2.4GHz reception, multi-device functionality to maintain a smooth and stable workflow, within 10 metres there will be no dropped frames or delays in the sense of stuttering. 11. Long-lasting and stable power, replace the battery once, the service life of up to 18 months (not included) 12. Size: 124.28x78.67x41.30mm 13. Weight: 85g