3
BT Drive Free 411
This wireless Bluetooth hands-free system was developed specifi cally for
users who want to use their cell phone while driving. The BT Drive Free 411 is
conveniently attached to the steering wheel. The multi-connection function
allows the simultaneous use of the BT Drive Free 411 with two cell phones. Its
improved microphone system and DSP technology for echo cancelling and
noise suppression achieve an excellent hand-free quality.
Bluetooth technology
Bluetooth
TM
is a registered trademark of Bluetooth SIG, lnc. Bluetooth is a
wireless communication technology with short range. It enables wireless
connections between all compatible portable and stationary communication
devices. The technology is based on a radio connection that ensures a fast
and reliable transmission of voice and data information.
Bluetooth is oriented to the worldwide applicable standard for operating in
the internationally recognised ISM frequency band (Industrial Scientifi c &
Medical). Within the ISM band (2.4 GHz to 2.48 GHz), the Bluetooth transmis-
sion operates 1600 times per second between 79 diff erent frequencies with
a data transmission range of up to 10 metres (Class 2).
