I take my XS or ananda with the Go Blu on walks outside.

I really like Bluetooth receivers because half the convenience of wireless to me is not having a cable attached to the phone itself, not necessarily the absence of a cable entirely. Dedicated Bluetooth headphones tend to compromise on sound quality so this is a nice alternative.

Used to have a Qudelix, but I recently got the Go Blu because the volume knob is way more useful to me than the EQ features. Sounds a bit better too.