PartyBox 300 is the most legit portable speaker on the market for those who want professional level/quality sound and multiple input options. This thing can be used indoors for a wedding with
JBL Partybox 300 Test - techkiste.net
JBL PartyBox 300 - Party speaker - wireless - Bluetooth - black - Walmart.com
JBL PartyBox 300 | Tragbarer Bluetooth-Partylautsprecher mit Lichteffekten
JBL PartyBox 300 | Battery-powered portable Bluetooth party speaker with light effects