Material Made of ABS with fine workmanship. Sturdy and durable, designed for long service life. Function and design 2in1 display: combines a clock and a temperature display in one unit. The right side features an A/B button to set the time and adjust values. Power: side battery compartment requires 2 button batteries (included). Installation and compatibility Clipon to car air outlet: no tools required, easy to install and use. Attaches securely to the air outlet and is not easy to detach. Night light and visibility LCD display with night lighting for clear readings in low light. Longpress for 8 seconds to enable energysaving blue light mode, which can stay on for up to 30 minutes. The blue light can be turned off with the switch. Applications and use scenarios Daily driving: quickly check time and cabin temperature at a glance during commutes. Road trips: monitor external temperature and local time to plan stops and manage comfort. Night driving or parking: use the energysaving blue light mode for easy readability without glare, then switch off as needed. Key attributes Function: dual clock and temperature display; adjustable time setting. Compatibility: clipon installation to car air outlets; no tools required. Material and durability: ABS for durability and long service life. Performance: reliable timekeeping with a straightforward setup and a readable LCD display.