This headset is not suitable for use with Speech recognition The Andrea Electronics Noise Canceling Bluetooth Headset, BT-200, is the ideal solution for hands free mobile communications in all life's noisy environments allowing users to have clear, noise free conversations while using a cell phone and PC applications such as VoIP. Ambient noise is often an issue with many handsets and headsets that can make conversations difficult in loud environments. Andrea's PureAudio noise reduction technology eliminates these problems. From your cell phone call in your car or airport to your VoIP call in the office, Andrea's PureAudio technology ensures your communications won't be impacted by where you are.

Best technology for microphone noise cancelation, enhanced speech intelligibility and wind noise suppression
Military grade noise cancellation (NC) boom microphone (providing approximately 20dB of noise reduction)
Microphone tip has integrated wind suppression (for 11.5dB of wind noise reduction)
Multi-device Bluetooth pairing.
Bundled with USB receiver which enables wireless PC connection to Bluetooth headset
Light weight with small form factor convenient for portability
Wireless Bluetooth headset provides hands-free safety while driving or operating other vehicles
One touch button operation for call, answer, end and volume control
Provides longer talk time between charges than with a digital processing devices with same battery size/type, 8~10 hours talk time, 150 hours standby
Headset operates up to 30 feet from handset
Provides a cost effective enhanced audio quality solution
Includes ease of use PC set-up wizard
Download full technical specifications here.
Operation
Compliant (Class 2) - Bluetooth V2.0 +EDR
Microphone Input - 1 Channel
Audio Output - 1 Channel
Transmittion Power - 0.25 to 2.5 mW
Receiver Sensitivity - < -80 dBm
Continuous Talk Time - Up To 8 hours
Charging Time - < 3 Hours
RF Frequency - 2.4 GHz
Operation Range - 10 Meter
Microphone Input
Audio Frequency Range - 100-3600 Hz
THD + N - 0.1%
S/N - 80 dB
Input Sound Level - 100 dBspl
Noise Cancellation - 4 dB / Octave
Speaker Output
THD + N- -80 dB
Audio Frequency Response - 100-3500 Hz
Output Power - 20 mW