Model Number: SK-R2 Brand Name: Skull Key Specifications/Special Features: 1. Small portable design, finger ring adjustable2. Built-in Lithium battery, easy to recharge3. Works on any surfaces except glass4. Harmless for your elbow, wrist and palm5. Built-in laser pointer, operation experience at office, at meeting, at teaching, good control feeling, anywhere you want to use6. Working distance: 10 ±2m7. Bluetooth model: HID Bluetooth 38. You can operate the mouse on PC by touching the induction field of each keys with your thumb to move the cursor, these keys can implement a traditional mouse function, such as left, middle, left keys function, DPI change, air and desktop mode switch, handwritten modeLaser indicate mode9. Product sizes: 26*25*35mm2.4G and Bluetooth version are available

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