Radio communication
Usually works within 10 meters (33 feet)
Various speeds depending on the version
Transfer rate: 0.424 Mbps
Devices have to touch.
Absolute maximum: 100 meters (330 feet)
Slower than Bluetooth
Up to 4 Mbps
Infrared technology
Commonly found in smartphones
Direct line of sight
Data sharing
Short-range
Can operate within 5 meters
Doesn't require pairing
802.11
