Adding Bluetooth Amp with Cellphone Use

[DGlide04]

Recently purchased a bluetooth enabled helmet which connects easily with my I-phone for tunes, etc.  The bike is a 2013 Deluxe with no other sound attached.  Currently playing my I-phone directly to the helmet via bluetooth.

I'd like to get a little more volume for the helmet speakers and was wondering if anyone makes a small bluetooth amp to pump up the cellphone volume a bit.  Not looking for a high volume/power amp, just enough to enable hearing music better on the road. 

Thanks.

[Fugawee]

https://iasus-concepts.com/ear3-helmet-amplifier/

I'm not sure if this is what You are looking for or not, and I am far from a Helmet Speaker Expert...but a Guy I know uses one of these on His Bikes, and Snowmobile Helmets.