... supports 802.11b/g protocol, frequency 2.4GHZ, the wireless distance can be 100 meters without block 2. powerful ... option)Built-inWiFi (chargeable option)Support 802.11g/b wireless networkCommunicationEmail / FTPSerial portOne RS485 interface, support transparent serial transmissionCommunication ... 125*90mm,0.65kgCertificationCE, FCC, RoHS 420TVL PAL/NTSC SD card Storage box fixed wireless ip camera