Andrea Electronics C1-1021450-1 Model USB-SA PureAudio External Digital Sound Card With Patented Noise Reduction Technology

Andrea Electronics C1-1020700-1 Model PCTI-3 3-Way Telephone Headset Interface, Designed for Maximum Telephone and Computer Connectivity; 2.2k Ohm, 5 VDC Microphone Power Provided Key Features Removes the Uncertainty of Legacy PC Audio Quality and Compatibility Issues USB 2.0 Full Speed Operation Device ClassSpecification V1.0 Compliant (Digital Audio Device) USB Stereo Microphone Input and Stereo Speaker Output Small Form Factor is Convenient for Portability withAudio Peripherals Power On / Data Transmit LED Indicator Win98 SE / Win 2000 / Win XP and Vista Compatible Mac OS9/10 (without Andrea Software) Compatible Specifications Mic Input: Microphone power provided: 2.2k Ohm, 5 VDC Connector: 3.5 mm jack; "tip", mic power and audio input; "ring" no connect Headset Output: Headphone output impedance: 8 to 32 Ohms for mono headsets, 16 to 32 Ohms for stereo headsets Signal to noise: 40 dB (min) Connector: 3.5 mm jack; "tip" right speaker; "ring" left speaker, "sleeve" speaker low Computer In / Out: Microphone Input: 3.5 mm plug connects to computer mic input Speaker output / headset output: 3.5 mm plug connects to computer speaker output or headset output Cable Length: 7 feet Multimedia Speaker Output: Connector: 3.5 mm stereo jack Power: Voltage (Wall transformer supplied): 9 VDC Current Drain: 70 mA (max)

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