The iPod Touch offers you all the same features of an iPhone but doesn’t actually make cellular phone calls. The Touch can download the same apps and do many of the same things as an iPhone but requires Wi-Fi or Bluetooth for any wireless connectivity. IPod Touch devices can also connect to the same types of Bluetooth devices as iPhones and iPads, such as mono and stereo headsets, keyboards and other iOS devices using downloadable apps. There are some minor differences in the types of Bluetooth devices your iPod Touch can connect with depending on if you have a fourth generation device or an older device. Writer Bio

Which Bluetooth Devices Work With an iPod Touch  - 3