Multifunctional Karaoke Microphones With three functions of karaoke microphones, recording microphone and wireless speaker, you can enjoy karaoke with your friends and family at parties. Of course, even one person can! A karaoke added, so it is the best choice for practicing singing. 3 playback modes and high compatibility Bluetooth karaoke microphones can be used in 3 kinds of audio playback modes , Bluetooth, audio cable, TF card. You can also use an audio cable to connect to a karaoke microphone without connecting to a Bluetooth device. (Note: TF card is not included. The maximum size of TF card is 32GB and only supports MP3 files). PORTABLE AND BLUETOOTH CONNECTION When using karaoke microphones, set Bluetooth to ON and connect it to the device (compatible with Android/iPhone) to play your favorite songs. Not only can you sing your favorite songs,(Note: The recording is stored on the device, not the microphone. If the device does not have a 3.5mm headphone jack, please use an adapter.) Built-in 1200 mAh high capacity battery the longest battery life is 6 hours, built-in 1200 mAh battery can be used continuously for 4-6 hours. It also comes with a USB charging cable, so you can easily charge it using a mobile battery or the car's USB port. It is easy to carry and you can sing your favorite songs anywhere.