Perixx has introduced two new trackball mice, the PERIMICE-522 and PERIMICE-822IR, featuring a symmetrical design, a 40mm trackball, and silent-click buttons. The two models share the same basic layout but differ in connectivity: the PERIMICE-522 uses a wired connection, while the PERIMICE-822IR offers three connection modes. Prices start at $39.99 for the wired model, while the triple-mode version costs $49.99.
Unlike conventional mice that require users to move the entire device across a desk, trackball mice let users control the cursor by rotating a stationary ball. The PERIMICE-522 and PERIMICE-822IR take a different approach from thumb-operated trackballs, placing the 40mm ball where the index and middle fingers can control it. Their symmetrical layout includes raised sections on both sides for the main buttons, alongside a scroll wheel and three additional buttons.


Both models support four sensitivity settings: 400, 800, 1,200, and 2,400 counts per inch (CPI). Users can adjust the cursor speed according to their preferences and workload. Perixx has also equipped all buttons with silent-click technology, which may suit office environments and shared workspaces where reducing clicking noise is useful.
The mice also feature an expansion slot on the underside that supports compatible 3D-printed add-ons. This allows users to customize the devices with supported accessories, although the range of compatible attachments has not been specified.



The Perixx PERIMICE-522 is priced at $39.99, or ¥5,999 in Japan, while the PERIMICE-822IR costs $49.99, or ¥7,999. The $10 price difference separates the wired model from the version with three connection modes. Perixx has not provided further details about regional availability in the supplied announcement.
Perixx PERIMICE-522 vs. PERIMICE-822IR Specifications
| Specification | PERIMICE-522 | PERIMICE-822IR |
|---|---|---|
| Product type | Trackball mouse | Trackball mouse |
| Connectivity | Wired | Triple-mode |
| Design | Symmetrical | Symmetrical |
| Trackball size | 40mm | 40mm |
| Trackball control | Index and middle fingers | Index and middle fingers |
| Sensitivity | 400 / 800 / 1,200 / 2,400 CPI | 400 / 800 / 1,200 / 2,400 CPI |
| Main buttons | Left and right | Left and right |
| Additional controls | Scroll wheel + 3 auxiliary buttons | Scroll wheel + 3 auxiliary buttons |
| Button technology | Silent clicks | Silent clicks |
| Expansion support | Compatible 3D-printed add-ons | Compatible 3D-printed add-ons |
| US price | $39.99 | $49.99 |
| Japan price | ¥5,999 | ¥7,999 |
