JBL Charge 4 Waterproof Portable Bluetooth Speaker - Red Condition:B Stock - Firmware update to improve

- Firmware update to improve audio video synchronization for customers using iPhones

and 5th generation)

smooth multitasking

plastic frame body design

JBL Charge 4 Waterproof Portable Bluetooth Speaker - Red Condition:B Stock - Firmware update to improveJBL Charge 4 Waterproof Portable Bluetooth Speaker. Red Version. Features: WIRELESS BLUETOOTH STREAMING: Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns enjoying powerful sound. UP TO 20 HOURS OF PLAYTIME: Built in rechargeable Li ion 7500mAH battery supports up to 20 hours of playtime and charges the device via USB port IPX7 WATERPROOF: Take Charge 4 to the beach or the pool without worrying about spills or even