Pad Print - Pump up the volume on your next promotional campaign by handing out these USB speakers with built-in three-port hi-speed USB 2.0 hub! Measuring 4 1/4" x 2 1/2" x 2 1/4", these must-have speakers feature volume and mute control buttons with power LED indicator, and they are USB-powered and do not require external power. The additional USB ports allow you to charge multiple devices at once. Customize with an imprint of your brand logo to create a giveaway that will surely speak to your clientele. Jade.