... 2.4ghz wireless cctv dvr recorder 2.Support SD card up to 32GB 3.2.5" TFT Screen 4.Built-in battery 5.Night vision 2.4ghz wireless ... , home securityMonitor Specification: 1. 2.4GHz wireless recordable receiver, USB2.0 port.2. 2.414GHz, 2.432GHz, 2.450GHz and 2.468GHz 4 channel receiving with enhanced ... USB (universal serial bus) port, 128 MB RAM or above. 2.4ghz wireless cctv dvr recorder SN82