Portable Bluetooth Speakers Karaoke Smart Microphone, Stream and Perform Karaoke On-the-go From Your Smart Phone or Karaoke Bluetooth bluetooth V4.0 with 30 foot range and stereo coding for mic input Wireless mic with built-in lithium battery and volume, echo, on/off controls 10.USB to micro USB cable included for lithium battery recharging,3 watt external speaker with built-in lithium battery 11.Stereo ear buds included for private monitoring,12.3.5mm audio output jack for connecting mic to ear buds for external speaker 13.Micro USB input jack for audio recording from mic(cable included),14.3.5mm audio input jack for connecting external audio source to mic( cable included)