Is your YST-M7 speaker's power adapter missing or broken? This LGM AC adapter is the perfect replacement! It's designed specifically for the YST-M7/YSTM7 multimedia speaker system, converting AC power to the DC power your device needs. Input is 100V-240V AC, so it works worldwide - great for travel or as a backup. Built with Dynamic IC, Charger IC, and Power fuse for rapid charging and over-charge protection. All our adapters are brand new, high quality, and tested to ensure they work perfectly with your device. We offer a 30-day money-back guarantee and 1-year service warranty for peace of mind. Perfect for home, office, or on-the-go use. Lightweight and portable, so you can take it anywhere. Just plug it in and your speaker will be ready to go! No more searching for original OEM parts - this works just as well at a fraction of the price. All units are tested and in great working condition before shipping. Need help? We're here for you! Don't let a missing power cord keep you from enjoying your music - get this reliable replacement adapter today and get back to listening!