Product parameters: For M / -M M2, M2 M10, M10 M50, M50 M100, M100 important! Steps: 1. Please insert the coupler -E12 to replace the real battery LP-E12. 2. Close the battery door. This is a necessary step. The camera cannot be started without closing the door. 3. There is a small cover in the middle of the battery cover. Push open the cover and you will see a hole. 4.Insert the power cord into the hole. 5. Connect the correct USB power supply. Colour: Black Material: ABS Package Contents: 2 x LP-E12 dummy battery 2 x -E12 external power supply Only the above package content, other products are not included. Note: Light reflection 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. When your digital camera is doing heavy work indoors, or when you want to for a long time, this far exceeds the battery capacity of LP-E12, especially when you don't have an AC power outlet outside, you will have our USB cable adapter kit With a suitable power bank, this is an perfect high-quality, low-cost solution for long-time outdoor This DC adapter kit replaces -E12 and LP-E12 Nowadays, DC 5V 2A power bank is very popular and easily available The DC adjustable adapter kit can be used with DC 5V 2A-3A power supply