The ceramic antenna needs to be used outdoors and does not work indoors GPS modules NEO-6M, 3V-5V power supply Universal Model: -NEO-8M Destined module with ceramic antenna, signal super Save the configuration parameter data EEPROM Down With data backup battery There are LED signal indicator Antenna size: 25 x 25mm Module size: 25mm x 35mm Installation aperture: 3mm Default Baud Rate: 9600 Compatible with flight control modules that provide GPS computer test software Colour:blue Material:pcb Package Contents: 1 x module 1 x antenna Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.