10x50 ed binoculars for bird watching

{"cid":"91199509","title":"Adults Wide Field 10 X 42 Binoculars With ED Glass Waterproof Bird Watching","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4e\/03\/751326a3fe8070355fcf69ba3194-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"YB optics","Model Number":"YBR10 ED Binoculars","Minimum Order Quantity":"1 piece","Delivery Time":"7-30 days","Certification":"CE, FCC, ROHS","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"30000 piece month","Packaging Details":"Optional","Objective lens":"21mm","Magnification":"10x","Objective diameter":"42mm","Waterproof":"IPX7 Waterproof","Prism":"BAK4 Roof Prism","Optical System":"ED Glass","Color":"Black \/ Army green","Feild of View":"105m \/ 315ft.","Exit pupil dia.":"4.2mm","Eye-relief":"14.2mm"}}