System Requirements: Pentium 400 MHz CPU or aboveWindows98se/XP/2000/NT OS 10MB HD space or above 128 MB RAM CD-ROM Standard USB port Standard RJ11 port  USB Audio Function: Supports USB2.0 Full Speed Supports USB Audio Device Class Specification 1.0 Supports Microsoft Windows98se/ ME / 2000/ XP Environment Requirement: Operation Temp 0oC – 50oC (32oF – 122oF) Storage Temp -30oC – 65oC (-22oF – 149oF) Operation humidity 10% – 90% without congealment Specification: Product: Single line USB Caller ID interface Item No.: AD101 Dimension:138(L) × 106(W) × 25(H) (mm) USB cable:1.5M Weight:187 g   Packaging Selling Units: Single item Single package size: 11X9X4 cm Single gross weight: 0.193 KG