JBL Partybox310 Powerful Bass Boost

The speaker has two 6.5" woofers and two 2.5" tweeters that deliver up to 240W of RMS power. Integrated wheels and a telescoping handle help make it easy to move the PartyBox 310 around, and the built-in battery lasts up to 18 hours. Its IPX4 rating means the speaker has a splashproof design