Zuosheng Insulin Cooler Travel Case TSA Approved – Portable Diabetic Medication Cooler with USB Charging & Backup Battery, Keeps Insulin at 0–18°C, Fits 1–7 Pens, for Travel & Daily Use (Titanium Gray) 0 L Compact Refrigerator  (Grey)

Accurate Adjustable Temperature High-efficiency refrigeration plus thick insulation maintains 32–64°F (0–18°C). You can manually set the temperature to protect insulin from high heat during long trips and hot weather. Dual Power Supply System Supports USB continuous power plus detachable rechargeable backup battery. The spare battery can be charged separately. Please install the battery with correct polarity if the unit fails to start. TSA Portable Compact Design Lightweight small body easily fits into backpacks and luggage. Inner space holds 1–7 insulin pens. Airline-approved for air travel, road trips and outdoor camping. Please verify pen dimensions before purchase. Waterproof Housing & Digital Monitor Shockproof waterproof outer casing resists bumps and splashes. Real-time LED screen shows internal temperature so you can always keep medication stable. Ultra Quiet Operation Working noise below 35 decibels. It will not disturb you on planes, trains, in hotel rooms or at bedtime.