This Yealink W56-USBCHARGER is a versatile VOIP phone accessory that allows you to charge your phone and other USB devices simultaneously. It is compatible with various Yealink models and comes with a manufacturer part number of W56-USBCHARGER. The charger is designed to make it easy to charge your phone and other devices without having to use multiple cables or outlets. The charger is ideal for use in enterprise networking, servers, and computer/tablet/networking settings. It is also perfect for individuals who need to charge their phone and other devices while on the go. The charger comes with a range of features and is suitable for use with a variety of devices.