| 1. Engine name | String | X |
| 1. Inverter generator | String | X |
| 1. Number of sockets 12 V | String | X |
| 1. Active electronics | String | X | |||
| 2. Piezo sensor | String | ↑ | X |
| 1. Headless | String | X | |||
| 2. Fretless fingerboard | String | ↑ | X | ||
| 3. Locking pins | String | ↑ | X | ||
| 4. Nut with clamp | String | ↑ | X |