For sale is a Harman Kardon Onyx high-performance speaker that is in excellent condition and works perfectly with the use of the power supply cord. Battery no longer holds a charge. This Harman Kardon Speaker features being made with the premium materials of stainless steel and leather, a USB port for device charging, and plays through Bluetooth with NFC, Airplay for Apple, and DNLA for android and Windows systems. This speaker system is highly rated by experts and users and is one of the best sounding speaker systems, providing a complete and balanced sound including powerful bass that can be played at loud volume with no distortion. The original charger is included with the speaker and needs to be used for the speaker to work since it no longer holds a charge. Thank you for looking