Detailed Product Description Driving Anti-Dozing Alarm Devicedescription:Easy to use and comfortable to wear for a long time3 variable angles setting for customized performancePowerful alarm beepBattery includedspecification: Size: 66X53X15mm, or2.60X2.09X0.59in Cable Length: 20g, or 0.71oz Color: Blue, Black Port: Shenzhen/HK Delivery time: Depends on the quantityPayment Term: T/T, Western Union ...