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new product colorful portable hand warmer power bank 4000mah

  • Introduction:Product name:Hand waremer power bank 4000mah with LED flashlight | Capacity : 4000mah | Input : 5V / 1A | Output : 5V / 1A| Size:110*75*50 mm | Weight:134 G | Charging time: 5-6 hours | Circuit protection: Accept | Operating Temperature:0°C-40°C
Shenzhen TOPTAI technology co., ltd