9" digital wireless DVR 4 quad split HD monitor with digital wireless camera system (supports 128G SD card) Screen size: digital screen (16:9&4:3) System: PAL/NTSC (auto) Resolution: 800 (RGB) x 480 Video inputs: 4-way video inputs, 1-way audio input Brightness: 450 cd/m² 500:1 Operating temperature: -20℃～+70℃ Operating voltage: DC12V～32V Function: 2.4G HZ digital wireless receiver Effective distance: up to 150M With removable sun visor
