A mini hand-cranking dynamo charger, which can be used as an emergency power supply for your mobile phones or other digital devices, suitable for travel, outdoor activities, etc.
Transform the mechanical energy into electric energy, timely charge your mobile phone when the phone is running out of power whether you are in the office, or on a business trip.
Widely compatible with most mobile phones and digital devices with USB.
Portable and light, easy and convenient to carry.
With indicator light, which can be an emergency illumination light.