Support warm insert and unplug; plug and play Be compatible with IRDA ; comply with USB1.1 standard Support three modes including SIR（2.4Kbps 1115.2Kbps）,MIR（576Kbps 11152Kbps）and FIR（4Mbps） No exterior power is needed; support high-speed infrared mode (the upper limit is 4M) Actualize wireless connection among all kinds of electronic products like PC,PDA, digital camera, cell phone and scanner. One meter is the longest data transmission distance and the maximum acceptance angle is 30 Be compatible with Macintosh Supporting cell phone includes Ericsson Nokia Motorola Panasonic Samsung Siemens Sony Ericsson (provide drivers)