I purchased this as a spare during an overseas trip this summer, but I didn't end up using it. Stored in a dry cabinet in a smoke-free, pet-free environment. It's in excellent condition and appears unused. Please check the photos for details. 【Product Description】 - Model: EE-1 - Brand: OM System - Type: Dot Sight (Viewfinder) - Accessories: Storage bag, new battery External dot sight viewfinder suitable for super-telephoto photography Designed with splash-proof construction Can be used with products equipped with a hot shoe, not limited to cameras from the same manufacturer. You can adjust the brightness and position of the target light, supporting framing when photographing distant subjects such as wild birds.