[Adjustable Frequency] The adjustable frequency feature makes the SKM9000 suitable for various occasions. Whether you need clear transmission for a speech or conference or pursue excellent sound quality for a concert, you can adjust the frequency according to your actual needs and achieve the best sound performance. [50-meter Wireless Operating Distance] With a wireless operating distance of 50 meters, you are no longer tethered by cables . Whether standing in the center of the stage for a performance or walking around the conference room for a speech, you can maintain smooth sound transmission, ensuring that your voice reaches every listener. [Strong anti-interference ability in the UHF band] In busy wireless environments, such as large-scale event sites, multiple wireless devices may work at the same time, causing mutual interference. 9000 can effectively reduce interference and the clarity and stability of audio transmission through ultra-high frequency UHF wireless technology and design. [Suitable for Multiple Occasions] Whether you're a singer, host, teacher, or speaker, the caters to your needs. From singing, meetings, outdoor activities, teaching, events, to church - it excels in delivering outstanding sound quality and stable transmission in various settings. Hign-concerned Chemical:None Set Type:Transmitter Sets Transducer:Condenser Microphone Use: Style:Handheld Microphone Colour:C:Black & Light Material:ABS Package Contents: 1 * Microphone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.