grabbed this for my mom, shes yet to really try out but i know she loves karaoke so she will love this!Wireless Bluetooth Microphone and Speaker, Hassle-free, Just Pair with Your Device by Bluetooth,and It Supports Professional Song Switch, Play or Pause. built-in DSP chip, restore the most real sound for you.bring the perfect listening experience. and Sound change function brings you interesting singing experience(Male and female voice exchange). Built-in Bluetooth Speaker Mic with 2600mAh Samsung Battery, ensures your Karaoke will be Used-Longer and more stable.Sing time up to 4-10hours on full charge. Microphone was made by environmental protection material, safe and harmless.Certificated by ROHS; CE; FCC.It's Perfect for Gatherings or Home KTV, and you will Have a Fun with your Friends or Family. We specialize in manufacturing microphones; 12-month warranty and permanent friendly customer service.