Detailed Product Description LED 7*23 LED Color YellowLanguages Multi languages supported, such as English, German,Turkish, Spanish,RussianSpeed 8 Grade Brightness 8 GradeDisplay Mode 6 TypesCommunication USB and key-button on the back PowerInternal Rechargeable BatteriesMaterial Acrylic front cover and ABS frame Front Cover Size 73.5 mm*31.5 mm /80 mm*42 mm /80 mm*62 mm /Larger(Optional)LED ...