Feature:

Input voltage: 0.9V-5V DC
Transfer efficiency:96%(max)
With USB port
With working indicator light
with one AA battery power supply output current can up to 200~300mA,
two AA batteries to the output current of 500~600mA

Specifications:
Size:34 x 15 x 7mm
Net weight:4g
Package weight:14g

Package Include:
1 x PFM Control DC-DC USB 0.9V-5V to 5V dc Boost Step-up Power Supply Module