Signal Whistle is a premium gear introduced in Update 3.4. It goes in the Left gear slot and provides damage to Ranged enemies. The Signal Whistle increases pet attack speed and damage.
| Rarity | Pet Attack Speed Boost | Pet Damage Boost |
|---|---|---|
| Common | 8.5% | 8.5% |
| Uncommon | 9.5% | 9.5% |
| Rare | 10.5% | 10.5% |
| Epic | 11.5% | 11.5% |
| Legendary | 12.5% | 12.5% |
| Mythical | 13.5% | 13.5% |
| Exalted | 14.5% | 14.5% |
| Deluxe | 15.5% | 15.5% |
