Power specs: Input 100 V-240 V AC; Output DC 19 V 3.42 A 65 W; delivers stable continuous power to your speaker without interruptions Compatibility: Compatible with Harman Kardon Onyx Studio 1 2 3 4 5 6 7 Wireless Bluetooth Speaker; Replaces APIONYXST3 NSA40ED-190200 ESX2567Q AU38AA-00 AU38AA-OO 6132A-ONYXST Safety features: High efficiency and reliability; Automatic overload cut-off; Built-in overvoltage, overheating and short circuit protection; prevents power surges Quality & warranty: Premium 19 V 65 W adapter made from high-grade materials; 7.5 ft power cord; delivers consistent daily power; Backed by a 200-day warranty for peace of mind Convenience: AC fast power adapter; Compact, plug-and-play replacement when original is lost or damaged; Ideal for home, office, parties, travel; keeps your speaker ready to play