[rechargeable battery] built-in 350mah lithium battery, which can be charged via car charger or computer usb port. the charger rating is 5v-2a or higher.
[record test results] it can be used to view the time in the standby state. the last 10 test results can be stored for you to view and compare. four measurement units ((% bac, ‰ bac, mg / l, mg / 100ml) can be preset as the default units, please refer to the user manual.
[auto alarm function] when the detection result of the alcohol detector is higher than the alert level and the indicator light is on, it will notify you with a continuous sound alarm. reminder: don't drive after drinking.
[accessories] the standard package includes 6 additional mouthpieces. all of these can be cleaned and recycled. in other words, it is very practical and hygienic.