Features: The module comes with LED signal indication and data backup battery. This GT-U7 module, with high sensitivity, low power consumption, miniaturization, extremely high tracking sensitivity, large coverage, high precision positioning. When using it, please make sure that the GPS module is in an open location. With a USB interface, you can directly use the phone data cable on the computer point of view positioning effect. USB directly connected to the computer, with the host computer-owned serial port function, no need for external serial module, send IPX interface active antenna Specifications: Size: Apptox 28x27x2cm/11.02X10.63X0.78in Weight:100g/0.22lb for NEO-6M 51 MCU STM32 Working Voltage: 3.6V-5V Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Package includes: 1 Set GPS Module