There's open back dynamic headphones, e.g. Sennheisers, that are pointed towards your ears. All planar magnetics and electrostats are going to emit from their diaphragm pretty equally both ways.
There's open back dynamic headphones, e.g. Sennheisers, that are pointed towards your ears. All planar magnetics and electrostats are going to emit from their diaphragm pretty equally both ways.