Wireless Karaoke MicrophoneBuilt-in with two internal high-quality magnetic speakers and 3-layer noise reduction: 3-layer mesh filter reduces noise transmission. Use the VOLUME and REMIX sliders yourselffor louder, more responsive output. Professional audio processor and tuning system to create shocking KTV live sound environment and wonderful echo reverberation. Two-way connectionBluetooth connection and wired connection. You just need to connect your phone via data cable or bluetooth and open the singing app on your phone. With clear and vivid sound effectsintegrated, you can listen to songs anytime, anywhere. Bluetooth 5.0 & Wide CompatibilityThe Bluetooth microphone device uses the latest Bluetooth 5.0 technology, which offers a more stable connection (up to 33 feet) and faster pairing (only 2 seconds). Compatible withCellphones, Pads, PCs, etc. play from karaoke speakers via bluetooth, TF card, wired connection. Powerful Voice ChangerThis funny karaoke microphone has magic voice changer, this microphone has 4 sound modes: original voice, child voice, male voice and harsh voice. (Note: Short press the REC button to changeaccompaniment; Press and hold the REC button for one second to change the sound) Built-in BatteryThe microphone battery is a rechargeable lithium-ion battery. The portable bluetooth karaoke microphone provides 4-8 hours of playtime on a single charge. Standby time is more than 20days. Used - Longer and sturdier, allowing freedom to sing. It's a birthday, holiday or Christmas gift for kids, friends or family. Function: Color: jet black Material: aluminum alloy Output power: 5W/6W Frequency range: 100Hz-10KHz Maximum sound pressure level: >115dB 1kHz THD <1% Reverb mode: Echo reverb Power supply: built-in rechargeable battery Battery capacity: 3000 mAh Charging voltage: 5V DC Scope of delivery: 1 karaoke microphone 1 x Micro USB cable 1x audio cable 1x ear feedback