Bluetooth is a wireless protocol for exchanging data over short distances from fixed and mobile devices, creating personal area networks (PANs). It was originally conceived as a wireless alternative to RS232 data cables. It can connect several devices, overcoming problems of synchronization.
| Class | Maximum Permitted Power mW (dBm) | Range (approximate) |
|---|---|---|
| Class 1 | 100 mW (20 dBm) | ~100 meters |
| Class 2 | 2.5 mW (4 dBm) | ~10 meters |
| Class 3 | 1 mW (0 dBm) | ~1 meter |
| Version | Data Rate |
|---|---|
| Version 1.2 | 1 Mbit/s |
| Version 2.0 + EDR | 3 Mbit/s |
| WiMedia Alliance (proposed) | 53 - 480 Mbit/s |