Channel Box - End Respawn Anchor + Balanced Teleport Porter

Crafted from 2 Shulker shells and an Ender eye, Channel Box works as an End Respawn Anchor but also as a Teleport Porter. First, place the Channel Box (make sure that the Channel box isn't covered up by blocks, so the box can open freely — like shulker box) and then click it with Ender Eye(s). Those stack of Pinned Ender eyes will be used as Teleporter.

To teleport, just hold the Pinned Ender Eyes and then use them — like what we always do when finding stronghold — and then you will be teleported to the Pinned Channel Box ( as long as you are still within the range of 250 blocks radius away from the Pinned Channel Box ). This also works when you died, as long as you hold the Pinned Ender Eyes(s) when you died ( 1 Pinned Ender Eye per Teleport/Respawn ). Plus you can use this Channel Box in other dimensions and it has Colour Variants — like shulker box.

This idea seems complicated but actually very simple, and this isn't that OP since there's a limiter in the working aspect and the crafting aspect. Plus this idea will also give Ender eye and Shulker shell more value, mechanic, and uses which are very great.