garmin 4 level rtk gps system

{"cid":"91193213","title":"Garmin 73 Handle GPS Take Your Navigation To The Next Level With Our Accurate RTK GPS System 203.1 G And 6.6 X 15.2 X 3.0 Cm","imgUrl":"https:\/\/img.chinax.com\/nimg\/b4\/b3\/eb3c2436f97617bd7c7c788176be-200x200-1.jpg","attrs":{"Brand Name":"Garmin","Model Number":"GPS73","Place of Origin":"US","Battery type":"2 AA Batteries (not Included)","Water rating":"IPX7","Waypoints\/favorites\/locations":"1,000","Display Type":"4 Level Gray LCD","Display Size":"1.4\" X 2.1\" (3.6 X 5.4 Cm); 2.6\" Diag (6.6 Cm)","Navigation Track Log":"10,000 Points, 100 Tracks","Navigation Routes":"50","Battery life":"+18 Hours"}}