How to Replace the Battery in a Harman Kardon Onyx Studio 1/ 2/ 3/ 4 - YouTube
Original PN: CP-HK07 P954374 Replacement Battery For Harman/Kardon Onyx Mini Bluetooth Speaker batteries - AliExpress
Amazon.com: 3000mAh CP-HK07 Battery Replacement for Harman Kardon Onyx Mini Waterproof Bluetooth Speaker Part NO Kardon OnyxMini with Tools Battery 3.7V : Electronics
Original PN: CP-HK07 P954374 Replacement Battery For Harman/Kardon Onyx Mini Bluetooth Speaker batteries - AliExpress
Harman/Kardon Onyx Mini Replacement Battery: BatteryClerk.com Speaker
Harman/Kardon Onyx Mini Replacement Battery: BatteryClerk.com Speaker
3000mAh Battery Replacement for Harman/Kardon Onyx Mini Wireless Speaker CP-HK07 - Walmart.com