MECCANIXITY Driving Doze Reminder Anti Sleep Alarm 80dB J Shaped Plastic with Vibration Alert Black

What is this? Every person needs one for whenever you have to drive for a long time. When your head drops an alarm sounds and you are back on track. Great for a long-distance trip driving primarily at night. What will I get? The alert device is in the specifications of: Alarm Mode: Sound alert/vibration alert; Material: Plastic; Battery Included: Yes; Total Size: 66.5mm x 59mm x 16mm / 2.62 x 2.32 x 0.63 inch In the package of: 1pcs x Driving Doze Reminder Are there any advantages of the product? Sound alert/vibration alert is available. Sound greater than 80dB is loud enough to get your attention. How to use it? Easy to use and very useful to prevent tired driving. Just hook it over your right ear and turn it on. What should I notice? This alert device is made to fit better on the right ear, sure it still can go on the left, but it doesn't feel as comfortable as on the right.