Bluetooth provides high speed communication in a short range personal area network (PAN). Bluetooth is commonly used to connect many devices to our mobile devices such keyboards, headsets, smart watches, and speakers. Bluetooth provides for lower battery consumption than Wi-Fi. However, Bluetooth provides lower maximum speed than WiFi. Bluetooth speeds range from 1-3 Mbps.
- Highly resistance to interference because it uses a broadcasting method that switches between any of the 79 frequencies available in the 2.4 GHz range.
| Class | Maximum Power Usage | Maximum Distance |
| Class 1 | 100 mW | 100 meters |
| Class 2 | 2.5 mW | 10 meters |
| Class 3 | 1 mW | 1 meter |
