Overview: Simple & compact design Charge the battery via US plug adapter or USB (Universal Serial Bus) port Input: AC100-240V~50/60 Hz 0.15A Output: DC4.2~350m A~¡À50m A USB (Universal Serial Bus) 5.2V DC, 800m A Comes with a 3.7V 1350m A lithium battery & an EU plug adapter Specification: Dimensions: 3.31 in x 1.97 in x 1.18 in (8.4 cm x 5.0 cm x 3.0 cm) Weight: 3.14 oz (89