Sony DCR-IP5 Operating Instructions Manual page 201

Overview of the Bluetooth wireless
technology
What is the Bluetooth wireless technology?
The Bluetooth wireless technology allows communication between various Bluetooth
devices without using cables. Devices which can use this technology include PCs,
computer peripheral devices, PDAs, and mobile phones. This omnidirectional
communication system enables communication even if the Bluetooth device is in a bag
or there are obstacles between the devices.
Also, the Bluetooth wireless technology has advanced security functions, such as
scrambled frequencies and data encryption.
Authentication
The authentication routine can block unspecified users' access to this network. When
attempting communication with an unregistered Bluetooth device, the devices must
first be registered with each other by entering a common passkey to each device. When '
connecting with a previously registered Bluetooth device, communication starts
without entering the passkey.