● The Tiniest 18650 charger: Portable to carry around
● 4057 power supply chip: Automatically enters a low current state, dropping the battery drain current to ensure your safety
● 18650 battery charger: Charges a 18650 battery only
● Metal body: Looks more utilitarian in appearance
● Input: Micro USB, 5V / 1A

Warm promp: Batteries are not included