Where to find either a very small Bluetooth speaker or small receiver to plug miniature speakers into?

Question

We want to mount a wireless speaker (mono okay) on a shoulder strap to receive voice commands from a GPS program on a laptop. We have found a miniature pair of amplified stereo speakers (1"x1"x2.5") intended to plug into an iPod like device and are temporarily using them with a cable. Would like a speaker only (no mike needed) Bluetooth or Bluetooth with audio jack. Goal is to make enough volume to hear GPS over traffic while walking but not so heavy as to drag off shoulder. Earphones are NOT an option - blind person must hear environmental audio cues.

I trudged back and forth through Fry's on the advice of several departments that demonstrated a complete lack of small speakers and of how Bluetooth functions. Radio Shack is better for small speakers and no trudging.
Person has no glasses and I don't want to engineer (and build) a solution - I want a little box.

Answer 1

Try Fry's Electronics. Suggestion - could this person be wearing glasses maybe by implementing earphone/speaker in the bow that could help - just a thought.
You might need to contact a manufacturer of hearing aides as they make such small elect. devices.Either should be a good bet.