UWB for IOS Nearby Interactions

Hi

I’m looking for UWB (device/beacon/tag) to be installed in a fixed location, battery powered, I want to range it using the IOS nearby interactions framework (directly, no sdk) to get an estimated distance and angle updates.

I need tens/hundreds for an upcoming project, I need the information to decide for direction to proceed.

Finally if you know a better way to contact Estimote besides e-mail please share it, it seems not the best way to contact them.

Thanks