Nagnechi Electronics

You can play music though usb port, sd card, aux input, stream music guitar jack from Phone, Laptop, MAC or other Bluetooth devices or your guitar which has record function.Powerful rechargeable battery can provide up to 5* hours non-stop music playing at large volume; Please charge speaker with equipped charger for 12 hours before first use and charging light will indicate its status.With a 12"Woofer,it can amplify your voice, play radio or stream songs from Bluetooth devices. It doesn't distort audio even at higher volume; This PA speaker is perfect for family Karaoke, conference, class, parties etcPress button to switch different functions among AUX, Bluetooth and recording, ECHO, BASS,TREBEL, MIC & Guitar volume. Turn off" Mic Prio" by click Repete button for two second if you'd like sing along with music, or music stops when you use the micThe Rock 900 comes with TWS functions, you can connect your one speaker with another speaker and enjoy a True Wireless Stereo experience.