Unigear Rechargeable Hand Warmer 5200mAh Detailed Review - Indispensable in the cold?

Watch the full video here: https://youtu.be/mYl12CAUKiY

Today we are having a small but exciting thing to review – Unigear Rechargable Handwarmer. This is our first piece of gear of this type and we are glad to have an opportunity to test and review this hand warmer. Especially now, when the winter is here, the days get shorter and we get less sunshine and warmth. From the first glance it looks like very promising little thing as we often get the cold hands when being outdoors. We are going to mention technical specs, its features, performance and our tips on use. So we eager to try and test it!

Have you ever used a hand warmer before?