Here is a power bank that doubles as a hand warmer for those cold winter days and nights. It comes with 12000mAh battery capacity. This hand warmer lasts 16 hours on battery. It also has 7 color options. It has a USB port to charge your phone on the go.
This hand warmer comes with self-heating hand straps. It has 113F and 122F heat levels. Its 18W output port can charge your smartphone to 50% in 30 minutes.