Coolest Cooler Built-in ice-crushing blender with 20V rechargeable battery for cocktails and smoothies. Splash-proof, and loud Bluetooth speaker for hours of music. 55 Quart Coolest is truly built to last, and can support over 600lb Extra thick insulation for up to 5 days of ice retention Built-in USB charger, LED lid light, bottle opener make your picnic a picnic