Built-in type c charger cable handwarmer powerbank 4000mah
1. This is a multi-functional hand warmer that can be recharged and reused.
2. The built-in type c charger can be used as a charging bank.
3. With LED digital display, real-time temperature display, free choice of gears, more safe and intelligent.
4. Double-sided thermostatic material, more durable heat preservation!