The Powersheer 7.4 LI-ion power bank by Fieldsheer is a versatile mobile warming solution. With a capacity of 2250 maH and a single port compatible with all brands, this power bank is perfect for keeping your devices powered up and warm on the go. Its sleek black design makes it a stylish accessory for any outdoor adventure. Stay connected and stay warm with the Powersheer 7.4 LI-ion power bank.