Hifi Karaoke Microphone--- Wireless Microphone Built-In Hd 57mm 4 5W Speaker And 32 TF Sound Card, Super Volume, Sound Surging, Dynamic, More Appealing, Providing Excellent Sound Quality, Prozor Portable Microphone Suitable For Karaoke Party, Ktv, Family Party, Interview, Speech, Travel And Other Occasions. Bluetooth Microphone Support, Double Fun, Pairing Two Microphones to Sing High At The Same Time, So You Can Sing Karaoke With Family And Friends, Is The Perfect Gift For Birthday, Christmas, Thanksgiving And Other Holidays. Bluetooth 5.0 & Recorer & Remove Vowel--- The Hi-Fi Microphone Uses Bluetooth 5.0 Technology And Is Suitable for Various Devices Such As Mobile Phones, Computers, Tvs, Etc; You Can Use The 3.5mm Audio Cable to Record Clear Audio And Vivid Sound Effects In The Mobile Phone, Acting As a Recorder; One Key to Eliminate The Original Sound, The Original Singing Change Accompaniment, Do Not Need to Worry About The Song Can Not Find Accompaniment. Up To 6 Hours--- Handheld Microphone Built-In Long-Term Large Capacity Rechargeable Battery, Built-In 2000mah Battery, After Full Charge Can Last 5~6 Hours. You Can Enjoy Your Favorite Music Anytime, Anywhere, Without Worrying About Battery Life. Volume Control--- Microphone with Independent Reverb Adjustment, Support to Adjust The Microphone And Music Volume Size, Enjoy Different Volumes of Music Feast!