ACK-E10 dummy battery coupler, a practical supply adapter for replacement of LP-E10 battery. with Rebel T3/T5/T6/T7/T100/Kiss X50/Kiss X70/1100D/1200D/1300D/2000D/4000D.(Not suitable for Rebel T3i, T5i, T6i, M)USB plug is designed with voltage conversion circuit, and works with DC 5V 2A-4A source. the USB plug to source and put the coupler into the camera battery compartment to stable and continuous supply for your camera.Enables you to external source with your camera to achieve long time , no need to replace camera battery again and again.Specifications:Output: DC 8.4VCable Length: 1mItem Weight: 52g/ 1.8ozcolour: blackMaterial: ABSPackage Contents: 1 * Dummy Battery1 * USB CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.