ULTRA-DIGITAL WIRELESS TECHNOLOGY ENABLES EXCELLENT VIDEO & AUDIO QUALITY; CONNECT TO ANY DVD RECORDER, VCR OR TV ; TRUE PORTABILITY WITH THE RECEIVER'S RECHARGEABLE BATTERY; INDOOR CAMERA FEATURES 15-FT NIGHT VISION RANGE & BUILT-IN MICROPHONE ; WALL MOUNTABLE; UP TO 450 FT LINE-OF-SIGHT WIRELESS RANGE; EXPANDABLE UP TO 3 DIGITAL WIRELESS CAMERAS; INCLUDES RCA VIDEO OUTPUT CABLE, RECEIVER CHARGING CRADLE & POWER SUPPLIES