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 Nowadays, DC 5V 2A power bank is very popular and easily available This DC adapter kit replaces -E12 and LP-E12 With a suitable power bank, this is an perfect high-quality, low-cost solution for long-time outdoor The DC adjustable adapter kit can be used with DC 5V 2A-3A power supply