Monaural Speech Recognition USB Headset with Digital Signal Processing (DSP). Includes: Quick Disconnect, Volume Control, Microphone Mute, and Translator

The full featured TalkPro USB incorporates two key technologies to achieve superior microphone performance: sophisticated Gentex noise canceling microphone proven to ensure higher speech recognition accuracy and VXI's innovative, Digital Signal Processing technology which heightens audio performance by converting the headset's microphone signal from analog to digital, thereby providing a signal that is completely compatible within the computer's digital environment. Also features volume control, microphone mute, and quick disconnect. $129.00

Features:

• Superior quality Gentex noise canceling microphone
• Easy to use: simple plug and play USB connection
• All day wearing comfort
• Flexible microphone boom stays in position
• Adjustable headband for great fit
• Swivel ear piece and soft cupped ear cushion
• Left or right side microphone placement
• Durable components for long headset life
• For Windows 98SE, Windows 2000, Windows Me, Windows XP
• Two year unconditional warranty

Microphone Specifications:

• Microphone: Gentex noise canceling
• Ambient noise suppression: 13dB @ 1kHz, typical
• Output impedance: 1.8 kOhms typical
• Sensitivity: -54dB @ 1kHz (defined 1" from talk-side, 82dB SPL)
• Signal to noise ratio: More than 50db
• Frequency response: 100Hz to 6.3 kHz, optimized for voice
• Operating current: 300uA max
• Operating voltage: 1.0 V DC min. to 20 V DC max.
  

Receive Specifications

• Speaker: Dynamic, 36mm diameter
• SPL:99 + 3dB (MEAN VALUE @ 0.8, 1.0, 1.2, 1.5 KHz)
• Impedance: 300 Ohms
• Frequency response: 190 Hz to 5.2 kHz
• Rated input power: 40mW continuous, 100 mW maximum warranty

Mechanical Specifications:

• Cables: Stranded wire, PVC insulation, polyurethane jacket
• TalkPro USB Connection: USB sample rates down sampled by host: 8, 11.025, 22.05, 44.1 kHz, normal USB sample rate 48kHz
• Microphone Boom: Flexible gooseneck / Swivels 270 degrees for left or right ear placement
• Headband: Stainless steel adjustable band; Ratchet Positioning
• Weight (without cord) 1.5 oz
• Cord: Upper and lower cords connected via quick disconnect style pendant
• Cord Length: 10' 7"

More Details (PDF)