Specification Binding : Personal Computers Brand : XYG-Raspberry Pi Label : XYG-Raspberry Pi Manufacturer : XYG-Raspberry Pi ManufacturerPartsWarrantyDescription : 1 year warranty Model : etfdhiop-619 PackageDimensions_Weight : 0.20723452628 PackageDimensions : L:4.5669291292 X W:2.6771653516 X H:1.2992125971 PartNumber : etfdhiop-619 ProductGroup : PC Accessory ProductTypeName : SINGLE_BOARD_COMPUTER Publisher : XYG-Raspberry Pi SmallImage_Height : 67 SmallImage_URL : https://m.media-amazon.com/images/I/51Im6Mvt2SS._SL75_.jpg SmallImage_Width : 75 Studio : XYG-Raspberry Pi Title : GSM GPRS Bluetooth HAT Based on SIM800C Wireless Internet Compatible with Raspberry Pi 2 3 4 Model B B+ Zero W WH @XYGStudy Weight : 0.2 WeightUnit : pounds