2 aa batteries rtk gps system

{"cid":"91193213","title":"Garmin 73 Handle GPS 2 AA Batteries RTK GPS System 50 Navigation Routes 2.6\" X 6.0\" X 1.2\" Size For Accurate And Long-Lasting Navigation","imgUrl":"https:\/\/img.chinax.com\/nimg\/35\/62\/0ef49565915560e35612e524cb3d-200x200-1.jpg","attrs":{"Brand Name":"Garmin","Model Number":"GPS73","Place of Origin":"US","Water rating":"IPX7","Waypoints\/favorites\/locations":"1,000","Weight":"7.2 Oz (203.1 G) With AA Batteries","Display Type":"4 Level Gray LCD","Navigation Track Log":"10,000 Points, 100 Tracks","Dimension":"2.6\" X 6.0\" X 1.2\" (6.6 X 15.2 X 3.0 Cm)","Battery life":"+18 Hours","Display Resolution":"128 X 160 Pixels"}}