This Is My Camping 14oz Insulated Coffee Tumbler Size:14oz Why does the duration of

Why does the duration of some devices deviate from the actual usage data

1* DC output (9V-12V 10A)

With the right message

or traveling

This Is My Camping 14oz Insulated Coffee Tumbler Size:14oz Why does the duration ofDRINKS STAY COLD OR HOT: Our stainless steel tumbler with double walled, vacuum insulation and a splash proof lid will keep your drinks hot or cold just the way you like them. DITCH THE DECALS: No more dingy decals! Outdoorzees cups feature UV printed designs that stand the test of time. ATTENTION GRABBERS: Get ready to be an attention magnet! Studies show that 72. 3% of people will like you more. It's proven. Features:*Stay hydrated on the go with