The Epos Expand 20 Universal Wired Speakerphone is designed for mobile business professionals who set up their office where it is most convenient. Simply plug & play your speakerphone in your meeting room, where is delivers premium audio. For relaxing between calls, the speakerphones can be used for listening to music with EPOS renowned sound quality. Simply connect to your mobile, laptop or tablet and have your meeting where it suits you. UC optimised and Skype for Business Certified Replaces PC/mobile speakers and microphone with an exceptional audio experience Sennheiser Voice Clarity and echo cancellation for natural communication Merges PC/softphone and mobile calls into one conference Clear microphone/mute button, call and volume control and easy cable management Hands-free operation to call and work simultaneously Visual LED battery status and voice prompts for low battery warning USB Connector Type: USB Type-A Microphone Direction Type: Omnidirectional Dimensions (WxDxH): 110x1