Handheld Karaoke Allinone System with Bluetooth. Carry the party with you in the palm of your hand with Naxa’s Handheld Karaoke AllinOne System with Bluetooth (NMK102). This handheld karaoke system is easily portable and lessens hassle to pack for travel. Allinclusive features fit into just one microphone. Simply connect to an external media device via Bluetooth. Customize your experience with the included reverb and volume controls. Comes with a sleek, sturdy protective case as well as a USB cable for the builtin rechargeable battery. Portable allinone karaoke microphone with builtin speaker.Connect your Bluetooth enabled smartphone to sing along.Reverb and volume controls 3.5 mm AUX input.Power: Rechargeable battery (500 mAh) Accessories included: Protective case, USB cable.