1) Dual Output Mode: 1. USB for PC 2. AV for TV/Monitor 2) High speed MPEG 4 compression, support real time image output 3) Built-in microphone for audio monitoring 4) 4 channels operation allows multiple (1-4) cameras systems (optional) 5) Long operation range: up to 100 meters clear line of sight or 30 meters throug walls/ceilings 6) Camera with AC or Battery operated for power supply 7) Lightweight and super mini size, dimension(WxLxH): 36X25X28 mm 8) Supports Windows 98/2000/XP MSN Messenger and Skype software 9) Built-in Infra-Red LED (6X): Color during day, night vision (B&W) at nigh 10) CMOS total pixels: 628 x 582 (PAL) / 510 x 492 (NTSC)