GY-NEO7MV2 default baud rate: 9600, Interface: RS232 TTL, Power: 3-5v | GY-GPS7MV2 module with a ceramic antenna, superior signal | NEO-7M GPS module Save the configuration parameter data EEPROM Down | This module is compatible with APM2 and APM2.5, and EEPROM can save all your configuration data, compatible with a variety of flight control module | NEO7MV2 with data backup battery;With LED signal indicator

28mm speaker, speaker: power : 2W; resistance: 8 ohm; diameter : 28mm/ 1.1" | 2W 8 Ohm DIY speaker mini Loudspeaker is designed with internal magnetic type, easy to install, it is a speaker as a replacement for your sound system | The welding interface is easy to install and is made of good rubber rubber to extend the life of the speaker. | 2W 8 ohm loudspeaker suit for any small audio project where you need an 8 Ω impedance and will be using 2W, can be applied for DIY electronic toys, radio, interphone, multimedia speakers, mini box speakers, and so on | High sensitivity, loud voice, good and clear sound quality, with iron shell, single paper cone and ferrite magnets.

28mm speaker, speaker: power : 2W; resistance: 8 ohm; diameter : 28mm/ 1.1" | 2W 8 Ohm DIY magnetic speaker mini Loudspeaker is designed with internal magnetic type, easy to install, it is a speaker as a replacement for your sound system | The welding interface is easy to install and is made of good rubber rubber to extend the life of the speaker. | 2W 8 ohm loudspeaker suit for any small audio project where you need an 8 Ω impedance and will be using 2W, can be applied for DIY electronic toys, radio, interphone, multimedia speakers, mini box speakers, and so on | High sensitivity, loud voice, good and clear sound quality, with iron shell, single paper cone and ferrite magnets.