Perfect for a summer adventure, hiking, camping or hosting a picnic in the backyard. GoSun Brew | Solar Powered Tea Traveler This stainless steel cup, French press and heater in one, lets you make tea or coffee anywhere. A power bank stores the energy needed to power the mug. The power bank can also charge other small devices, like laptops and phones. | Capacity 12 oz. | 2.75" w x 8.75" t | 1 lb | 8'