Features
- Straight-key input — press length decides dot or dash
- The Morse tree lights up as you key; the shape of the next node shows where a short or long press goes (dot = circle, dash = square)
- 1 kHz sidetone and haptics synced to your keying
- Adjustable speed from 5 to 50 WPM, with audio preview
- Letters A–Z and digits 0–9 (digit tree toggleable in settings)
- Japanese / English