Overview: With high quality USB audio feature, this optical USB Skype Mouse can also be used as a mini computer hi-fi speaker to play music. Moreover, when you flip the cover of the mouse, the fully functional keypad and the LCD screen inside can help you make/receive VoIP calls even easier. No doubt it is the best PC companion for you to surf the Internet and enjoy various popular VoIP services. As a mouse: 1. 5m USB cable (USB 1. 1) 800 dpi optical sentor As a Hi-Fi Speaker: Crystal clear sound quality 48 KHz sampling rate Supplied earphone to protect your privacy. As a VoIP Phone: Auto detection between mouse and VoIP phone Seamlessly integrated with Skype, VoipButser, VoipStunt, VoIPCheap, VoipDiscount, SparVoip, Internetcalls, poivY, WebCallDirect, VoipCheapCom, FreeCall and NetAppel. Monochrome 128*64 pixel LCD with backlight. Supports all kinds of languages VoIP Contact List, Call List, Call history, time, and caller ID display on LCD screen Hands-free speakerphone function Various chord music ring tones catering to different tastes. Fully functional keypad and LCD screen enables you to make/receive calls without using keyboard and mouse. Rings loudly on an incoming call. Acoustically isolated earpiece and microphone to eliminate echo. Full-duplex communication with crystal clear voice. Specifications: Weight 119g Dimensions 99mm*50mm*29mm Cabling 1. 5M USB Cable (USB 1. 1) LCD 29mm*13. 5mm; 128*64 Pixel Mouse Optical Sensor 800 dpi Earphone Connector 2. 5mm Voltage 4~5. 25 V Operating Humidity 5~95%RH Operating Temperature 0~40 degree System Requirements: Microsoft Windows 2000/XP Pentium 400MHz above processor/128MB RAM/16MB free hard disk capacity. One USB port available. Internet connection (ADSL, Cable Modem, Dial-Up, Wireless LAN) for the VoIP phone feature.