Features: TWO WAYS TO CONNECT: This portable microphone can be connected in two ways: use it with the Bluetooth function or use the audio cable that is included in the package. BUILT-IN SPEAKER: This microphone is equipped with high-quality speakers. When you are not in the mood to sing, it can be used as a Bluetooth speaker. The dual surround speakers make your accompaniment music and background music sound better. SMART NOISE REDUCTION: This karaoke microphone comes with an active noise cancellation function which enables you to record your voice without the unnecessary background noise. FOR DIFFERENT SCENARIOS: When you want to sing, you can connect the device to play the accompaniment, and you can also use it in different musical applications that you use. LARGE CAPACITY Battery: This portable microphone has a built-in 1500mAh rechargeable battery. When it is fully charged, it can be used for 4 hours so you don't have to worry about low battery or getting it discharged in the middle of your hosting, performance, and other conference. Specifications: Color: Rose Gold, Gold, Blue Material: aluminum alloy Output wattage: 5W Frequency response range: 100Hz ~ 10KHz Reverberation: echo sound Working time: 3-4h Charging: DC 5V/1A Smartphone APP: KTV karaoke effect Package Includes: 1 x Microphone 1 x AUX Line 1 x USB Charging Cable 1 x User Manual