new gps system cheap bluetooth gps receiver

{"cid":"91193213","title":"Pentax brand GPS 220 Channels RTK GNSS Receiver G5 price","imgUrl":"https:\/\/img.chinax.com\/nimg\/57\/1b\/e740e5264d96e26a3a6068deaf7a-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Pentax","Model Number":"G5","Minimum Order Quantity":"1pcs","Delivery Time":"3-7day","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"10pcs\/day","Packaging Details":"suitcase and carton","Channels":"220 channels","model":"Pentax G5","GPS":"L1 C\/A, L2E, L2C, L5","GLONASS":"L1 C\/A, L1P, L2 C\/A (M only), L2P","Humidity":"100% Non-condensing","Waterproof\/Dustproof":"IP65 standard","QZSS":"L1 C\/A, L1 SAIF, L2C, L5","SBAS":"L1 C\/A, L5","BEIDOU":"B1 \/ B2"}}