Product Introduction Thanks for purchasing PWAYTEK wireless microphone,please read the following instructions carefully before use: This product is a smart wireless microphone that provides professional-grade recording output.Plug and play,no app required. The clip-on transmitter has a great sounding built-in mic and it is small and light enough to clip to shirts and clothing. It can be used in different circumstances such as Live, Video Recording,Interviewing, online Teaching ，KTV and others. MINI RECEIVER working type:No battery, plug and then play, no need to recharge TRANSMITTER Microphone type: built-in polymer battery Built-in battery capacity: 100mAh 3.7V Working Hour ：4 - 5 hours after fully charged Charging Time：About 1 hour (5V/1A) How to use Step 1: Preparation before the first use,Charge the charging box and transmitter for 1 hours Step 2: Connect the receiver to your phone,The blue light flashes. Step 3: Turn on the transmitter by pressing the power key for 3S and the blue light will flash slowly...it is paired successfully when the light of receiver and the transmitter changes from slow blinking to steady blue light. Then open the phone camera, liveApps or others to use the microphone Note: As shown in the figure above, this product has the monitor function，if the receiver does not need to monitor, it can plug in the charging cable to quickly charge the mobile phone at the same time This product has three selection of scene mode.Please select different scene mode according to the actual situation and your need. Operation In the connection state, short press the power button of the transmitter The indicator flashes once in red and then turns blue —the Original mode .the sound quality of the recording is the best when used in a quiet environment The indicator flashes twice in red and then turns blue—the Noise reduction mode. It will reduce the noise when used in a noisy environment The indicator flashes three times in red and then turns blue—the KTV mode When you need to sing （The effect is better when the microphone is within 5cm from the mouth） Battery life without power failure Built in 120mAh battery,10 hours endurance,short video recording eating ,broadcasting,live recording ,unrestrained. It's easy to deal with all kinds of noisy environments and meet your needs all day. Compatible with multiple devices Support mobile phones,cameras,notebooks,etc devices with microphone interface can be easily connected. Real time ear return monitoring One machine is multi-purpose.Insert a special earphone cable when monitoring .Realize the monitoring function while recording and broadcasting Product Specification Frequency range： 2400~2483.5MHz Frequency Response ： 75Hz ~ 35kHz +/- 3dB Signal to Noise ratio： -90dB Transmission delay ： 9mS The sampling rate： 48KHz The bit depth： 24bit Transfer longest distance: 49-65ft (barrier-free working distance) 32-49ft(obstacle distance or the noise is loud) Charging input voltage: DC 4.8~5.4V