If you want WIFI connection and can handle a bit of DIY, then look into the Raspberry-Pi based music players.
The Raspberry-pi is a very cheap single board computer that can accept a WIFI adapter. The hardware cost is probably less than $80 depending on what you get. You install on the Raspberry-pi a music player program (Squeezelite is one, there are several options) and then stream music to it from your laptop. Again, there are several options for the laptop software to do the streaming (called a music server). Logitech Media Server (LMS) is a very good choice and is free. You can then control your music selection and playlists from the laptop, or you can even add an app to a smart phone to control the player. iPeng is one I use on an iPhone, but there are some for android phones too. All in all a pretty slick system for very few dollars, but you will have to be willing to DIY some of it.
There are many tutorials on the web and some places even sell the software already installed on a SD card ready to plug into the Raspberry-pi. I have never personally done this, although I am currently using a very similar (though slightly more expensive) Wandboard that is the same concept.
There are several good discussion on the Raspberry-Pi based music players on the Digital Sources forum on AudioKarma.
Terry