SkyMasters are economically-priced large aperture offerings from Celestron. They're great for both astronomy or long-range terrestrial observing.
High-powered binoculars are difficult to hold steady by hand; a monopod(and a tripod adapter if not included with the binocular) with an incorporated fluid pan/tilt head or with such a head attached between the monopod and the binocular is highly recommended.
Caps Case Tripod Adapter Strap
Celestron 15x70 SkyMaster Binocular