4 in 1 Karaoke Microphone Portable wireless microphones can be used as microphone,Bluetooth speaker,loudspeaker,recorder.Perfect for KTV singing,car singing,family singing and party singing,etc. Sound quality and voice change Two-channel 3D stereo speakers,three-layer mesh filter reduces noise, create a shocking KTV live sound environment and wonderful echo reverberation.This magic wireless microphone has five voice change modes: original voice, baby voice, female voice, male voice, and warcraft voice. Battery Capacity Upgrade Built-in 2400mAh rechargeable battery(18650),fully charged can last 8-10 hours.Whether at home or outdoors,these singing microphones can meet your requirements. Two Connection Methods Bluetooth and 3.5mm audio interface connection.The microphone uses the latest Bluetooth 5.0 technology,provides faster pairing,more stable connection (33 feet of barrier-free range),and supports all Bluetooth devices.You can also install a TF card to use it. Gifts for Kids This bluetooth microphone has beautiful colors and brilliant lights.It is an excellent gift for children on birthdays and Christmas.Let your child start his small solo concert now.