?24 Months Warranty?Boya provides 2 years warranty and perfect customer service. If the product fails, please feel free to contact us and we will provide you with a complete after-sales solution. ?Wide Compatibility?The transmitter comes with a USB-C adapter, which can support devices with Type-C ports, such as OSM Action 2/3, Samsung/LG/Pixel/Android tablets. ?Portable Charging Case?Microphone comes with a charging case. The microphones has a built-in rechargeable lithium battery with a battery life of up to 5 hours, and the charging box can be used for up to 15 hours. During the recording process, you can charge the device through the transmitter without worrying about interruption of recording. ?Easy Automatic Connection?BOYA Omic-U microphone does not require any driver. Simply plug the receiver into your recording device, turn on the receiver, and it will automatically pair for use.Note: Make sure the USB OTG in Setting of your device is on. ?Smart Noise Reduction?BOYA Omic-U has mute and noise reduction functions. Double-click Noise Reduction to significantly reduce ambient noise. Provides 48kHz high-definition sound quality and reduces post-editing work. ?Magnetic Back Clip? The wireless lavalier mic transmitter back clip is upgraded to a magnetic back clip. It is more convenient to disassemble, easier to clip on clothes, stable and will not fall off.