Darkglass headphone amp thingy. I can stream via Bluetooth audio off my phone to it, and power it off a cheap $20 power bank for many hours on a single charge.I am looking for a way to practice quietly. I know I can use the output jack on my amp, but I can't put a song on at the same time or use a metronome (I use an app for that).
What do you folks use for this?
Thanks for your time, J