【Compatible Models & High Capacity】-Bayhon J21 Rechargeable Battery is Only Compatible With the JBL PartyBox Stage 320 and JBL Xtreme 4 Wireless Bluetooth Speaker.10000mAh High Capacity Battery Has Up to 18 Hours of Playtime, Which Means You Could Keep the Party Going for Up to 36 Hours.
【Convenient and Fast Charging】- The Featured USB Type C Charging Interface Makes it Much Easier to Charge Your Camera Battery On The Go. With the Included USB Type A to Type C Charging Cable, Quickly Charge the Battery By Connecting to A Portable Charger or Wall Charger. Also Compatible with Original Battery Charger.
【Smart LED Indicator】-The Battery is Designed with Charging Indicators to Clearly Display Charging Progress. Red Indicator Stands for Charging While Green Indicator for Fully Charged.
【Easy-to-Replace】-Just Swap Out the Battery In the Back of Your PartyBox Stage 320. Xtreme 4 Wireless Bluetooth Speaker Need Use A Screwdriver to Unscrew the Cover On The Top of The Speaker, Replace The Battery, And Then Install The Cover.
【Safe & Reliable】- Replace Battery Obtained FCC CE RoHs Certification, Integrated Smart Chip and Multiple Protection Systems Prevent Over-Charging, Over-Discharging, Over-Current and Over-Heating for Safe Usage.
【What You Get】-1 Pack 10000mAh Replace Battery;1 *USB Charging Cable,1 *User Manual,1 Year Manufacturer Warranty;And 7*24-Hour Customer Service.