KFD products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. Warranty: 30 Days Free Exchange /36 Months Warranty; Input: 100-240V 50-60Hz Output:19V 2.1A 40W ;Charger Connector Tip Size:Check Photo; This adapters was made with the highest quality materials.V-0 grade flame retardant,OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)100% compatibility with the original,more safety than other adapter Replacement Harman Kardon Charger HK Onyx Studio Charger Power Cord Compatible with Harman Kardon ONYX Studio 1 2 3 4 5 6 7 Wireless Portable Speaker System, Harman Kardon Onyx Aura Studio 1 2 3 4 5 And Go + Play Wireless Bluetooth Speaker Replacement Harman Kardon Power Supply Comaptible with P/N: APIONYXST3; NSA40ED-190200; ESX2567Q; 6132A-ONYXST; AU38AA-00; AU38AA-OO; FC0005-0767095; FC0031; FC0027; TR00236_B; OW-XRDP-0NQU; APIONYXST2 APIONYXST3 Harmon Kardon replacement Power Supply Cord Battery Charger