Easily connect your smartphone with these HookUpz. You can take pictures or video directly through the "eyes" of your binocular and easily text or e-mail friends. Includes rubber ring that conforms to the binocular, or can be removed to further increase the diameter range. Hook up to your binoculars for hunting or bird watching. Be sure to capture everything nature has to offer. Weight: 1.2 oz., Dimensions: 5" x 3" x 1".