Amazon.com: 13400mAh High-Capacity Extended SUN-INTE-125, 2INR19/66/4 Battery Replacement Compatible with JBL PartyBox 300 High Power Portable Wireless Bluetooth Party Speaker : Electronics
JBL PartyBox 300 | Battery-powered portable Bluetooth party speaker with light effects
JBL PartyBox 300 Review | PCMag
Amazon.com: 13400mAh High-Capacity Extended SUN-INTE-125, 2INR19/66/4 Battery Replacement Compatible with JBL PartyBox 300 High Power Portable Wireless Bluetooth Party Speaker : Electronics