<P> Piconet range varies according to the class of the Bluetooth device . Data transfer rates vary between about 200 and 2100 kilobits per second . </P> <P> Because the Bluetooth system hops over 79 channels, the probability of interfering with another Bluetooth system is less than 1.5% . This allows several Bluetooth piconets to operate in the same area at the same time with minimal interference . </P>

A bluetooth piconet is an example of what type of network topology