Detailed Product Description Features: 1) 2.4GHz, 1/4" CMOS camera, 2.5" LCD screen, 380 TV lines sharp picture display 2) 4 channels available to avoid possible interference 3) Camera built-in microphone and speaker in receiver for audio monitoring 4) Rechargeable Li-battery in receiver which can work 2 hours continuously 5) Bright and color adjustment for receiver 6) Open transmission distance: 00 meters 7) Camera with infrared for day and night vision, and use normal AAA battery. 8) Frequency points for 4 channels: 2,414MHz, 2,432MHz, 2,450MHz, 2,468MHz (can design for customers especially in range of 2,400MHz to 2,483MHz) 9) The product is cabinet and diaphanous 10) Convenient to take and use 11) Used for home and office security, especially for baby security to avoid all possible dangers 12) Also can be used in supermarkets, marketplaces and small residence 13) Used for door surveillance, and bird watching 14) This product must be forbidden for illegal use