Nicer-S products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications World Wide Input Voltage 100-240VAC 50/60Hz. Output: 5V 2A Yealink Power Adaptor Compatible with Yealink T3, T46G & T48G IP Phones AC DC Power Adaptor fit for Yealink T3, T29G, T46S, T46G & T48G IP Phones 5-Volt 2-amp New AC DC Power Adaptor for Yealink T3, T29G, T46S, T46G & T48G IP Phones 5-Volt 2-amp AC DC Power Adaptor Compatible with Yealink T3, T29G, T46S, T46G & T48G IP Phones 5-Volt 2-amp