Thank you for viewing. Power-on has been confirmed as shown in the images. If the product does not work upon arrival, we will accept returns if you contact us within one week of delivery. 【Product Description】 - Brand: NIKON - Model Number: MH-21 Includes a glasses-type power cable / protective cover 【Compatible Batteries】 EN-EL4 / EN-EL4a ※ We have checked the manufacturer's website, etc., to list the compatible batteries, but we ask that all buyers also confirm compatibility with your camera and battery. Thank you for your consideration.