Noise Reduction: With smart noise control chip, audio processing is faster and more stable, make the input sound voice more clear, and there is no lag. Features: A variety of live control sound effects, sound modes and adjustments, professional control, easy to use. It can be used for DJ, music studio re-cording, karaoke online, podcast, singing, k song, live stream, online chat, etc. Bluetooth: Support Bluetooth 4.0, accompaniment music can be transferred via mobile phone, from the shackles of wires.With smart noise control chip, audio processing is faster and more stable, make the input sound voice more clear, and there is no lag. Bluetooth: Support Bluetooth 4.0, accompaniment music can be transferred via mobile phone, from the shackles of wires. Compatibility: Highly compatibility, suitable for mobile phone/computer. And support forWindows/for Mac/for Android/for IOS.Support to connect 2 mobile phone or computer at the same time.Perfect for broadcast, studio music recording and more.Please note: As we are international seller, our delivery time will take about 10 working days. Our logistics provider and delivery method is: New Zealand Post.