Features & details ♪【Portable Bluetooth Sound System】This portable system is built in a dedicated treble speaker and a rich 5.25 inch subwoofer to deliver crisp audio sound. It is a multi-functional device to work as karaoke machine, music speaker, PA system, FM radio, guitar amplifier etc which perfect for gathering, party, karaoke, speech outdoor&indoor activities. ♪【Advanced Audio Effect Control】Build your own audio mixer with Treble,Bass,Echo controls to create a exclusive beats. Equipped with echo effect to let you mix the music with the sound of speaker and microphone to achieve full range surround sound. ♪【Long-Lasting Rechargeable Battery】Built in compatible 2400mAh rechargeable battery inside speaker which can be played lasting for up to 4-8hour playtime. (Based on the volume of sound). 9 multiple color active LED rhythmic light which flicker with the beat of your music,making the atmosphere of the party dynamic and boisterous and impressing your audience. ♪【Super Wide Compatibility】Play music via Bluetooth 5.0 by many external devices like iPhone, Android mobile phone, iPad etc. Easy Connectivity through the USB port, AUX input (e.g. MP3, CD player) and TF card. One wired microphone is included to enjoy the ultimate karaoke party with your family and friends. Remote control to let you move around freely from a distance. ♪【RHMspeaker Promise】We aim to offer high-quality product to bring joy to your family. 12 months warranty and friendly,easy-to-reach technical support make your purchase guaranteed. The package comes with a karaoke machine, 1*wired microphones, power adapter, charging cable, AUX cable, remote control and user manual.