Voidstorm is one of the new zones in WoW: Midnight. The area itself has many secrets to uncover, things to collect, achievements to unlock, mounts to farm, and other things to gather.
One Voidstorm reward in particular that players are talking about right now is the 
Interdimensional Parcel Signal, a toy that summons a mailbox anywhere you need it. Using it lets you send items, gold, or auction house sales without returning to a city or hub.
Portable mailboxes have long existed in World of Warcraft, but this one stands out because of its visual effect. Instead of a standard mailbox, the toy opens a swirling void sphere that looks like a small black hole (check out the image above this article to see what it looks like in-game).
For players who farm, gather materials, or run long exploration sessions, this item can save a lot of time. Especially if you did not own any other mailbox toy already.
How To Get The Voidsphere Mailbox in WoW
The item is unlocked after completing the 
Treasures of Voidstorm achievement. To earn it, you need to find various hidden treasures scattered across the zone.
Once all required treasures are collected, you receive the Interdimensional Parcel Signal as a reward.
The treasures can be found throughout different areas of Voidstorm. Below, you can see a map showing where they are located, which should help you plan your route.
If you want the exact coordinates and a full breakdown of every treasure, you can check our Voidstorm zone guide, where we list each location step by step, as well as even more achievement guides and other details of this zone:
If you spend a lot of time farming, gathering, or sending items to alts, unlocking this portable mailbox is absolutely worth the short treasure hunt.
For more on World of Warcraft: Midnight, make sure to check out our WoW news hub.