Giới thiệu Mô Đun Sạc Pin Lithium 3.7V 4.2V Tăng Áp 5V 9V 12V USB Chuyên Dụng
Welcome to 【LanfigersStore】 ,We insist on the lowest price to sell the best quality items!!!Feature:
Micro usb DC-DC Step up Boost module charging board
The OUT+Port can output adjustable voltage
Fine workmanship and good performance