Get started with Crush80 in just a few minutes.
This section covers basic connection methods, OS layout switching, and battery level checking — enough to get you typing right away.
Crush80 supports three connection modes: Wired, 2.4GHz wireless, and Bluetooth.
Use Fn + Tab to cycle between modes. The active mode is indicated by the LEDs on keys 1-5.
Fn + Tab until the 5 indicator lights up, which indicates a successful wired connection.💡 Wired mode provides the most stable connection and is recommended for firmware updates.
Fn + Tab until the 4 indicator blinks.💡 Note
For best wireless performance:
- Keep the dongle away from USB 3.0 devices and other 2.4GHz interference sources (such as routers).
- Using a USB extension cable often improves signal stability.
- Optimal distance between keyboard and dongle is within 15 cm.
Crush80 supports up to three BT devices.
Fn + Tab to select 1, 2, or 3 (the indicator will blink).Fn + 1 / 2 / 3 to enter pairing mode. (Rapid flashing indicates pairing is active).Bluetooth Channel Mapping
| BT Slot | Key Combination | Device Name |
|---|---|---|
| Channel 1 | Fn + 1 |
Crush80-1 |
| Channel 2 | Fn + 2 |
Crush80-2 |
| Channel 3 | Fn + 3 |
Crush80-3 |
The keyboard is set to Windows mode by default.
Press and hold Fn + M for 3 seconds to switch between Windows and macOS layouts.
The keyboard will automatically apply the correct key mapping.
💡This setting is stored on the keyboard and does not require software.
Battery level can be checked directly from the keyboard.
Display behavior differs between RGB and Non-RGB versions.
Fn + Space.1–0will light up to indicate battery level.| Keys Lit | Battery Level |
|---|---|
| 🔴 1–3 | Below 40% |
| 🟡 1–7 | 40%–79% |
| 🟢 1–0 | 80%–100% |
- ach number key represents 10%.
- All keys lit indicates a full charge.
Fn + Space.1 to 5 will light up.| Indicators Lit | Battery Level |
|---|---|
| 🔴 1–2 | Below 40% |
| 🟡 1–3 | 40%–59% |
| 🟢 1–5 | 60%–100% |