Selling a R6-4, 96664-66, 450-470 MHz, GPS GNSS Receiver.  Trimble two unit yellow case is included along with 9-pin Trimble data cord and one Trimble Battery. NO external antenna. GNSS Signal Tracking options include: GPS, GPS L2C, GLONASS, QZSS, and L5. NOT include is Galileo, BeiDou, and NavIC. Please review the photos for condition and for what is included as what you see is what you get. Before packing it away for sale, we ran through the Bluetooth link and satellite tracking with a TSC7 and all checked out correctly. Thank you for looking and please let me know if you have any question before committing to buy.