SMAKN&reg; Remzibi OSD Module Image Overlay + GPS System with Amplified Passive Antenna Siginal 3db for RC Quadcopter Multicopter 250/300 Batteries2S-4S. Video output: NTSC or PAL. Operating voltage: 7 ~ 16.8V. Baud rate of GPS:4800-115200,NMEA . Charge Time: about 6-8hours.