1. Prevent child from hot car deaths. 2. Visual and audible alarm. 3. Wireless transmission, keeping tidy in vehicle. 4. Can be warning at least 2 min. after flame out. 5. With LED light alarm, can we warning at least 15 min. (option) 6. With dual car charger function. QC3.0 fast charging and 5V/2.4A charging. Support type-c output connect: 5/2.4A Baby Seat Alarm is a wireless device with a small sensing pad which placed under the baby seat cushion. It's a alarm reminder system which over exhausted parents of infants to take baby out of the car. Few hour forgot will be regret forever.