UpBright New DC 18V AC/DC Adapter for Harman/Kardon Model: Go + Play Go&Play Wireless Portable Speaker Dock Docking Station 18VDC Power Supply Cord Charger (with 18V Output. NOT 24V Output.) World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition. UpBright 30 days money back guarantee. 1 full year service warranty. UpBright New DC 18V Global AC / DC Adapter For Harman / Kardon Model: Go + Play Go&Play Wireless Portable Speaker Dock Docking Station 18VDC Power Supply Cord Cable PS Charger Mains PSU (with 18V Output. NOT 24V Output.)