[Multifunctional All-in-One] This equipment is multifunctional karaoke, music speakers, audio amplifier system and guitar amplifier. It has many unexpected functions, such as FM radio / the registration / the USB / TF / AUX port, you will be surprised by the practicality and functionality of this karaoke.[Excellent sound quality] The portable speaker and microphone system has sufficient capacity to provide the audience with excellent sound. Very suitable for public meetings, parties, outdoor activities, weddings, parties garden parties, family birthdays, etc. It is an ideal Christmas, New Year and birthday gift for family, friends, coworkers, etc.[Durable and easy to use] High quality and durable ABS plastic shell. Built-in 2400mAh rechargeable lithium-ion battery can provide 4-8 hours of battery life (playing time strictly depends on the capacity used during operation). The battery life is perfect for the duration of the party, even for a long party.[Super compatibility] This portable speaker has several functions. You can listen to music via the USB port, the AUX input (mp3, CD player, smartphone) or a Bluetooth compatible device (smartphone, tablet). The system allows you to move freely during the event. Note: This portable amplifier is not compatible with devices without Bluetooth search function (such as Bluetooth headsets).