Specification Brand : GUY-TECH BulletPoint1 : Input : 100V - 240V worldwide BulletPoint2 : Replacement: This Adapter is a Brand New Replacement One, Not Original BulletPoint3 : Over Voltage output Protection, Over Current output Protection. Short Circuit output Protection. BulletPoint4 : High Power exchange efficiency to control working temperature and stable working. BulletPoint5 : Package include & Note:1 x Adapter Charger, Please make sure that you choose the right adapter before ordering. Color : Black CompatibleDevices : Cisco IP Phones (7962, 7970, 7971) CompatiblePhoneModels : Cisco IP Series 7962, 7970, 7971 ConnectivityTechnology : AC Power Cord ConnectorType : Barrel Connector ExternallyAssignedProductIdentifier : 9003907837831 IncludedComponents : 2 x USB Cable InputVoltage : 240 volts ItemName : Guy-Tech 5V AC/DC Adapter for Avaya ID 700451230 1600 1600PWRUS PA-1600 IP Phone VoIP Telephone 5VDC Power Supply Cord Cable PS Wall Charger Input: 100-240 VAC 50/60Hz Worldwide Voltage Use ItemTypeKeyword : voip-telephone-adapters Manufacturer : Guy-Tech Material1 : Plastic Material2 : Metal MountingType : Wall Mount OutputVoltage : 48 volts PartNumber : 3403E10486 PowerSourceType : Corded Electric ProductDescription : Why I choose it? -Small and lightweight for convenience, portability and storage. Easy to take anywhere -High efficiency and low energy consumption, low fever & no noise at full wattage working -Protect Your Device: Over Voltage Protection, Over Heat Protection