JBL Partybox 310 Portable Party Speaker - Black 260 WATTS!!! Open Box BRAND NEW MINT CONDITION w/ power cable.The item "JBL Partybox 310 Portable Party Speaker Black 260 WATTS" is in sale since Monday, December 7, 2020. This item is in the category "Consumer Electronics\Portable Audio & Headphones\Portable Stereos & Boomboxes". The seller is "jouhe0" and is located in Grovetown, Georgia. This item can be shipped to United States.