docooler LED Digital OBD-II HUD Head Up Display Car System SPEEDOMETER With RPM MPH peed (Miles/KM), RPM, Voltage, Water Temp. (easy self installation)

Specifications:
Environment temperature: -40c ~ +80c
Barometric press: 86 -106KPa
Relative humidity: 10% - 95%
Environment voice: < = 60dB (A)
Alarm of sound level: > = 30dB (A)
Work voltage: 9V - 16Vdc (12Vdc / 400mA)
Product size: 14.5* 8 * 1cm / 5.8 * 3.3 * 0.39in
Product weight: 110g / 3.87oz
Package size: 17 * 11.5 * 5cm / 6.75 * 4.5 * 2in
Package weight: 277g / 9.77oz

Package List:
1 * HUD Host
1 * OBD II Interface
1 * Mat
1 * Reflective Film
1 * Head Up User Manual(English)