... monitor with touch buttonWith touch buttonsBuilt-in 2.4GHz wireless receiver. Frequency range:2400~2483MHZ,Group supported: 2414 ... board speaker.Panel:1Heat discharge2Mounting bracket installation3Connection cable7 INCH WIRELESS COLOR LCD REAR VIEW MONITOR WITH DIGITAL SREEN ... D: 60°, R: 70°, L: 70°Operating temperature: -20 ºC ~+50ºC,RH90%.Storage temperature: -30 ºC ~+80ºC,RH90%.Dimension: