You can add a bluetooth printer adapter to any printer's USB port. However, the MacBook supports the fastest version of Bluetooth, version 2 (3.0 Mbps), while no BlueTooth printer adapter is beyond Version 1.1 (768 kbps).
Also, if you stick a BlueTooth printer adapter in the USB slot, the slot becomes unavailable for use by computers that are BlueToothless.
You might find a printer that has a slot for an Ethernet card, then buy a wireless card. But such printers and compatible cards are rare, especially in your price range.
That's the best I can do. It's not easy to find built-in BlueTooth, much less built-in 802.11 wireless Ethernet, in such low-cost printers.
I've bought my college-bound daughter a MacBook and an HP Business Inkjet (2300DTN) that contains a built-in Ethernet card. To give her wireless printing, I have two choices:
- Using a USB cable, connect the printer to an Apple AirPort Express wireless hub, but leave the hub disconnected from the university's network (to comply with its rules).
- Buy a BlueTooth 1.1 USB printer adapter and let my daughter print at 25 percent of the MacBook's rated BlueTooth speed.