Samsung SCH-I830MSASPR - Manual (Page 148)

140 Section 2H: Using Bluetooth Wireless Technology
About Bluetooth Wireless Technology
Bluetooth wireless technology provides short range wireless
communication exchange over a distance of about 30 feet
without requiring a physical connection.
Unlike infrared, you don't need to line up the devices to beam
information using Bluetooth. If the devices are within range
of one another, you can exchange information between them
even if they are located in different rooms.
Your phone allows you to beam files, appointments, tasks,
and contact cards between common devices or you can use
Bluetooth wireless technology enabled peripherals to
integrate with your device.