... , user-friendly practical use. 7, supports a variety of wireless anti-theft detectors, infrared radio fence, smoke, gas, flu ... security. 20, with tri-band GSM 900MHz, 1800MHz, 1900MHz wireless networks, wired telephone network from the outside alarm limits. 21, ... e-color mobile multimedia functions, truly mobile Unicom. 30, the wireless transmission image size adjustable: QCIF (160 × 128), CIF (320 ...