Bluetooth PAN Basics
Power Profiles
11 | P a g e
Chapter 7: Power Profiles
Bluetooth version 3 devices are classified into three power classes which are the
same as for the Bluetooth version 2.1 devices. They are based on the modulation
schemes with the highest output power.
Power
Classes
Maximum Output
Power (mW)
Minimum Power
Output (mW)
Range
(approximated)
(m)
1
100 (20 dBm)
1 (0 dBm)
~100
2
2.4 (4 dBm)
0.25 (-6 dBm)
~10
3
1 (0dBm)
N/A
~1
Power class 1 devices supports power control for the received powers. Power class 2
& 3 devices may be used to make best possible utilization of power consumption and
also to reduce the interferences for all devices that use the same spectrum that
Bluetooth devices use.
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