... visibility in outdoor strong light, with intelligent brightness adjustment system, reducing light pollution.2. Built-in air conditioner for ... constant temperature adjustment, integrated intelligent temperature control system.3. All-sealed metal housing, high perspective glass with ... HDMI, S-Video, YPbPr, CVBSWorking Temperature: -40-+55°CAudio System: 2*8Ω5WWorking Voltage: AC110-230V