1. Brand new and high quality, handhold microphone come amplifier speaker. 2. Wireless Connection & Cable Connection: With 3.5mm audio jack, it is compatible with Android, iOS phone, etc. In this way, you can hear your voice will come from the speaker. 3. Multi-layer Noise Reduction & Echo Effect: Reduce noise and highlight the original sound with 3 layers,Echo effect is much like KTV, you will feel liking being on the scene of karaoke. 4. High Sensitivity Microphone: It can capture your voice with pickup hole. Microphone will turn your room into KTV in an instant. 5. Supporting & Endurance Time: It supports almost singing software no matter on the phone or on the computer. With 2000mAh battery, it supports up to 2.5 hours of playing time.