Product Name: Step Up Boost Module
Input voltage: DC 0.9 to 5V; Output: 5V, 600mA
Connection type: USB 2.0
PCB size: 25 x 18 mm / 1 x 0.71 inch(L x W); Total length 33 mm / 1.3 inch
Material: electric part, plastic
Main color: Green, silver
DIY amplification just needs a battery, you can connect with a 5V 600mA output, for your mobile phone, MP3, MP4, very easy.
this module makes Step-Up if necessary for your 5V power device, if it is not the lithium battery, can you directly connect to 5V, it will solve your problems.
Scope of delivery: 5 x Step Up Boost Module
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.