ed lens monocular telescope for mobile phone

{"cid":"91199509","title":"12x50 High Definition Monocular Telescope, Telephoto Mobile Phone Shooting For Concerts","imgUrl":"https:\/\/img.chinax.com\/nimg\/a9\/87\/5c9b0f4020be83467b952dda856b-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Hollyview","Model Number":"YMT42 12X50","Minimum Order Quantity":"1 piece","Certification":"CE ROHS","Place of Origin":"Sichaung,China","Payment Terms":"L\/C, D\/A, D\/P, D\/P, T\/T, Western Union, MoneyGram","Magnification":"12 X","Objective lens diameter":"50mm","Eyepiece size":"20mm","Exit pupil distance":"12mm","Exit pupil diameter":"4.2mm","Field of view":"5.6\u00b0","Size":"21x7cm","product weight":"471.5g"}}