I have Momentums with ANC. They were rebranded as HD1, and now the Momentum is just closed back. But as far as I am aware Sennheiser makes the only headphones w

I have Momentums with ANC. They were rebranded as HD1, and now the Momentum is just closed back. But as far as I am aware Sennheiser makes the only headphones with both ANC _and_ premium materials, built to last.