คำอธิบาย
| Brand | SIGNO |
| Model | WM-121W |
| Interface | USB Receiver Wireless 2.4GHz |
| Sensing technology | Optical |
| Resolution | 1600 DPI |
| Buttons | 6 Buttons |
| Battery Type | 1 x AA Battery |
| System Requirements OS | All Windows |
| Dimension | (W x D x H) : 6.30 x 11.00 x 4.00 cm |
| Net Weight | 0.06 KG |
