Standard Features:
| Item Code | Type |
| FB10a | Tuning Fork Stainless Steel – 128Hz |
| FB10b | Tuning Fork Stainless Steel – 256Hz |
| FB10c | Tuning Fork Stainless Steel – 512Hz |
| FB10d | Tuning Fork Stainless Steel – 1024Hz |
| FB10e | Tuning Fork Stainless Steel – 2048Hz |
| FB10f | Tuning Fork Stainless Steel – 4096Hz |