ITEM NAME:5pcs 0.9V to 5V DC-DC Converter USB Step Up Boost Module 600mA Green + Silv A2I4 5pcs 0.9V to 5V DC-DC Converter USB Step Up Boost Module 600mA Green + Silv A2I4 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 Weight: 11g 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
