Product details:

ASTM-Tested for UV and Salt-Fog/Moisture Exposures High-Efficiency, Full-Range 3-Inch Drivers Great for Motorcycle or ATV Handlebars, or Golf Carts Designed for Vehicles with Bars or Handlebars Cast-Aluminum Clamp Mount to Resist Vibration Enhance the tunes on vehicles with handlebars but no fairing with PSM3 Mini-Enclosed Speakers.( Two speakers per carton) The PSM Mini 2? Enclosed Speakers are built for excellent sound on your ATV or motorcycle handlebars. These weatherproof speakers come in durable chromed enclosures, complete with handlebar mounting hardware. Add a PXA amplifier for a complete system, meant for rough roads, and rougher trails. These PSM speakers work best with 50 watts of recommended power. See below for more details.