Bluetooth wireless: Fast data transmission with up to 33 feet working range. Ergonomic design: High-quality plastic material, slim design number pad, ergonomic tilt, and anti-slip pads on the back for comfort. Multi-function 22-key number pad: Numeric keypad supports Num Lock, ESC, Tab, Delete, and other functions. Soft-touch high scissor switches: Comfortable typing experience with rounded keys that are easy and silent to press. Rechargeable: Built-in rechargeable battery; single charge lasts up to 3 months. Compatibility: Works with PCs and desktop computers running Windows 2000/XP/Vista/7/8/10 and iOS operating systems. Color: White/Green/Pink Material: Plastic Package Contents: 1 x Wireless Number Pad Note: Only the items listed above are included. Other products are not included. Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.