Altair is a Spanish manufacturer of both wired and wireless comms.
The WBS200 wireless base station is digital, licence free and will support 4 WBP200 wireless beltpacks.
The WBS20 is also a power suppply for traditional Tecpro wired beltpacks.
Altair EM201 beltpacks are fully compatible with Tecpro, ASL, Stonewood and Clear-Com belt packs