Quiet charging and long standby operating noise is below 30 decibels to avoid disruption during work or rest. builtin 10200 mah battery provides portable standby time of more than 8 hours. Cold storage for insulin and meds temperature range 018℃, the insulin travel cooler keeps insulin at 28℃ even when ambient temperature is 30℃. its cooling effect is better than that of insulin ice packs. Safe and convenient designed to provide a simple, affordable way to keep medicines (including insulin or other injectable and liquid medications) at a safe temperature. definition LCD touch screen large screen LED display shows realtime temperature with precise control. easy to operate, even for the elderly. inner tank features an arc angle design to prevent medicines from colliding with the box during travel. Use scenarios 1) Travel and outdoor activities: guarantee insulin and other injectable meds stay within the safe temperature range during flights, road trips, camping, or days out. 2) Home care and outages: continue to protect essential medications during power outages thanks to builtin battery support. 3) Daily caregiving and appointments: convenient for caregivers and patients to transport temperaturesensitive medicines to clinics, pharmacies, or between home and care facilities.