I'm looking for a portable speaker that is NOT Bluetooth. I've begun traveling for work and most hotel tv speakers are terrible.

I say no Bluetooth because I believe it would be difficult to pair it to most hotel TVs. I'm thinking most of them should have an auxiliary jack; at least the one in my room right now does, as well as an optical.

What are my options? I'm not seeing a whole lot, even if I exclude "Bluetooth" from my searches. Needs to be small enough to not take up a ton of space in a checked bag.

Thanks!