Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

1.LCD blacklight: Blue 2.Sensor: Advanced flat surfaced alcohol sensor 3.Warm-up time: Within 10 seconds 4.Respond time: Within 5 seconds 5.Operating temperature range: 5~40 6.Detection range: 0.000-0.199% BAC / 0.00-1.99 BAC / 0.00-0.99 mg/L 7.Digital display results (% BAC / BAC / mg/L) 8.Color: Black Power input: 3V (3 x "AAA" alkaline battery， not included) Weight: 70g Dimension: 112*60*30mm