PR-A19 2.4GHz Wireless Charging Bluetooth Mouse Pen Type Shining Quiet Mouse Product parameters: 1. Material: environmentally friendly ABS 2. Application: PC, tablet, mobile phone, smart TV, set-top box, etc. 3. Features: ergonomic, mini, handwriting 4. Default DPI: 80012001600dpi 5. Interface: USB 6. Current: 3.7V15mA 7. RF frequency: 2402MHZ-24080MHZ 8. Battery: 500 mAh (continuous use for 48 hours, standby time is 5 months) 9. Wireless transmission frequency: 2.4GHz 10. Operating distance: 10m 11. Number of buttons: 4 buttons 12. Product size: 14.5 x 2 x 1.8 cm 13. Net weight: 30g 14. Added Bluetooth function, two modes can be switched freely; plug in the receiver is 2.4G version, unplug the receiver is Bluetooth version, can connect to mobile phone Packing list: -Mouse x 1 -Receiver x 1 -Instruction manual x 1 -Fabric bag x 1 -Adapter x 2 -Charging cable x 1 -Base x 1