JBL PARTYBOX 1000 powered by BATTERY !!! - YouTube
JBL Partybox 310 - Portable Bluetooth Speaker with Long Lasting Battery, Powerful JBL Sound and Exciting Light Show - Walmart.com
JBL PartyBox 310 in Schwarz – Trag- und rollbarer Bluetooth Party-Lautsprecher mit Lichteffekten – Spritzwassergeschützte, mobile Musikbox mit Akku: Amazon.de: Elektronik & Foto
Speaker Battery 3.7V/5200mAh/6800mAh GSP-1S2P-F5A for JBL Partybox Encore Essential _ - AliExpress Mobile