Features: 1) Camera size: 56 x 60 x 45mm 2) Transmission/Receiving frequency: 2.4GHz 3 Transmission power: 10mW(T x 2400) 4) OPen distance: 30-50meter 5) Horizontal definition: 380 lines 6) TV system: PAL/NTSC 7) Video picture: Color with Audio 8) Power Adapter(Camera): DC12V 500mA 9) Power adapter(Receiver): DC12V 500mA 10) GW/set: 4000g Packing: 20set/ctn Packing: 43 x 33 x 45cm