SAYTINAI 2.4G Professional wireless headset microphone This microphone is an omnidirectional mono microphone, not a stereo microphone Not compatible with Android and IOS phones, Macbooks, laptops Not compatible with Bluetooth speakers Not compatible with Aux or digital audio systems Note: When using the microphone, please do not point the microphone at the speaker to prevent howling Cannot listen during recording, can listen after recording is completed 2.4G Omnidirectional Wireless Head Mic The professional microphone has a very sensitive sound pickup effect, built-in the latest 2.4G wireless chip, more stable frequency band, plug and play Dual-head USB rechargeable microphone The Dual USB charging cable. Built-in 400 mAh rechargeable lithium-ion batteries, It uses the latest low-power chip.It only takes 1-2 hours to fully charge. It uses the latest low-power chip. The microphone can be used for about 8-10 hours after it is fully charged. Headset MIC and Handheld Mic The headset microphone is detachable and portable, and easy to install. Wireless Head MIC and Handheld Mic 2 in 1. Q/A What should I do if the wireless microphone makes noise? Please try to replace the speaker with a higher power. The best power is 40-60W. The noise is caused by the current noise caused by the speaker power not meeting the microphone's requirements.