which license-free frequency band?

seenagape

9 years ago

Bluetooth 2.0 compliant devices use which license-free frequency band?

A.
900 MHz ISM band

B.
5.7 GHz ISM band

C.
5.2 GHz U-NII band

D.
2.4 GHz ISM band

E.
5.3 GHz U-NII band