This AC power cord is a great addition to your Samsung Shape M3 and M7 wireless audio speaker system. With its easy-to-use design, you can easily connect it to your speaker system and enjoy your favorite music without worrying about battery life. This cord is perfect for those who want to use their speaker system for extended periods of time without worrying about running out of battery. It's also a great option for those who want to charge their speaker system's battery. This cord is compatible with the Samsung Shape M3 and M7 wireless audio speaker system and can be easily connected to your speaker system's charging port. Once connected, you can enjoy your favorite music for hours on end without worrying about running out of battery.