usb 2 0 wireless presentation system dongle

{"cid":"91203182","title":"Ultrasonic Portable Electronic Whiteboard With USB Cable \/ Wireless Dongle","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/70\/fb5f54e37a9eaed29b26c005c5dc-200x200-1.jpg","attrs":{"Brand Name":"FLYIN\/OEM\/COSTA","Certification":"CE,FCC ,ROHS","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram,Alibaba Trade Assurance","TYP":"ultrasonic electronic whiteboard","PROTABLE":"YES","Weight":"1","Connectivity":"USB Cable or Wireless Dongle","Work area\uff1a":"3m * 1.5m","PC Systems":"Windows\u3001MAC\u3001Linux\u3001Android\u3001Chrome OS"}}