ZyXEL V500. Volume control: Digital. Display: LCD, Display size (HxV): 6096 x 4064 mm (240 x 160 "). Weight: 0.932 kg, Dimensions (WxDxH): 218 x 95 x 233 mm. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -30 - 60 °C, Operating relative humidity range: 20 - 95 %