Yealink Yea-ps5v2000us Power Supply for Yealink 5-volt 2-amp 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 Global 5V 2A AC / DC Adapter For Yealink Yea-ps5v2000us Power Supply for Yealink 5-volt 2-amp 5VDC Power Supply Cord Cable Charger Input: 100 - 240 VAC Worldwide Use Mains PSU