Acer Ferrari 3400 - Manual (Page 38)

Getting familiar with your computer 28
English
Fast infrared
The computer’s fast infrared (FIR) port allows you to do wireless data
transfer with other IR-aware computers and peripherals such as PDAs
(personal digital assistants), mobile phones, and infrared printers. The
infrared port can transfer data at speeds of up to four megabits per
second (Mbps) at a distance of up to one meter.