User's Manual

Introduction
3
®
Bluetooth
®
Bluetooth
®
Bluetooth
®
Bluetooth
Only the sound close to the transmitter will
be sent to the receiver. In this way background
noise can be suppressed, effectively canceling
the echo. Even if you speak in a noisy
environment, the conversation will not be
affected by the noise.
operates at a uniform frequency
channel. By using the technology, the
wireless data transmission speed will reach 720
bps ~ 1 Mbps. The technology
includes a complete set of encryption and
authentication codes, so it has very strong
security.
®
Bluetooth core specification v1.1
This version includes the specifications concerning
RF, BB, LM, L2CAP, RFCOMM, IrDA and other core
specifications.
Brief principle of DSP
In order to cancel the echo, the latest version of
DSP (a technology for echo-canceling) was
TM
adopted for the ANYWHERE .
Furthermore, TWO MICROPHONES are used to
recognize and eliminate the surrounding noises.
Audio gateway
Audio gateway refers to the device that is the
gateway for the audio, both for input and output.
Typical audio gateways are mobile phones and
personal computers.