Wireless Audio Streaming: This Indoor / Outdoor Speaker System has a built-in Bluetooth with Wireless Range of up to 33+ft so you can play your favorite song or music from all of your favorite devices like IOS, Android mobile phone, Tablet, PC
Supports USB / SD Card: The device is also equipped with USB / SD Card Readers and AUX 3.5mm Input cable for connecting external devices. Compatible with MP3 digital audio files.
One key to mute the original music, then you can karaoke as you like
Recording: insert the SD card/TF card in it, long press 'REC', you can start recording afer 'beep' sound.
Lound & Clear Sound: This personal amplifier speaker comes with 10W original clear and high output which perfect for a group