CNGATE 4.3 Inch GPS Navigation System For Motorcycle - IPX7 Waterproof Rating, 4GB Internal Memory, Bluetooth (Grey) 4.3 inch waterproof Motorcycle GPS Navigation System IPX7 Waterproof Rating Bluetooth Connectivity General OS Version: Win CE 6.0 CPU: Media Tek MT3351 RAM: 128MB Bluetooth Waterproof Rating: IPX7 Bluetooth: Via Hands-free with echo-cancellation