Amazon.com: AC Charger Fit for Harman Kardon HK Go + Play Mini II 2 Wireless Portable Bluetooth Speaker Power Supply Adapter Cord (Fit for 19V Output. Not 24V Output.) : Electronics
Harman Kardon GO Play Mini Portable Wireless Bluetooth Speaker Onyx5 - Black 6016235320374 | eBay
7.4v 3000mah Gsp1029102 01 Li-ion Rechargeable Battery For Harman Kardon Go Play Mini Bluetooth Speaker Cp-hk06 Lithium Batteria - Rechargeable Batteries - AliExpress
Harman Kardon Go + Play Wireless Bluetooth Speaker (Black) • Symphony Hifi
3000mAh GSP102910201 Battery for Harman Kardon Go Play Mini Bluetooth Speaker - Walmart.com