6 x AA (#5) lithium batteries, 2 x AAA (#7) lithium batteries. Output (Outprt of AAA lithium batterybattery 5V/200mA. Output (Outprt of AA lithium battery 5V/350mA. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. ).
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