The product is not suitable for microphones with a 4 pin jack connection. Specification • Connectors: 1 x USB 2.0 Type-A male > 1 x microphone 3.5 mm 3 pin mono jack female 1 x speaker 3.5 mm 3 pin stereo jack female • Chipset: CMedia CM119 • Functional keys: Volume-UP, Volume-Down, Mute • USB audio device specification 1.0 • USB HID class 1.1 • Sample rate: 16 Bit / 48 kHz • Signal-to-noise ratio (SNR): ca. 90 dB • Supports virtual 7.1 channel Sound, Xear 3D • USB bus powered System requirements • Linux Kernel 3.7 or above • Mac OS 10.8 or above • Windows Vista/7/8.1/10 • PC or laptop with a free USB Type-A port Package content • USB sound adapter • CD Software Xear 3D (for Windows Vista/7/8.1/10) • User manual