[Support Multiple Receivers]: This wireless in-ear monitor system supports one transmitter to multiple receivers. This makes it ideal for bands, choirs, or any group performances that require multiple members to monitor the same audio source. [Real-time, Delay-free Transmission]: Utilizing ultra-high frequency transmission, the system provides real-time, delay-free audio transmission. This ensures that performers can accurately hear the audio source, which is essential for timing and synchronization during performances. [Wide Wireless Range]: The system's wireless transmission range is up to 60 meters, providing ample flexibility for performers to move around the stage or studio. This allows for more dynamic and engaging performances without the constraints of cables. [Versatile Audio Output Support]: This wireless IEM system supports a variety of audio outputs, including sound cards, mixing consoles, headphone amplifiers, mobile phones, and computers. This makes it a versatile solution for a variety of audio setups and requirements. [Compact and Portable]: The receiver's compact and portable design allows it to be easily clipped to clothing or placed in a pocket. This ensures that performers can move freely without being constrained by bulky equipment. The system also features a one-touch frequency switch for easy operation. Modulation: Digital FM Frequency range: UHF 630-690MHz Preset frequency: 8 (automatic pairing) Frequency response: 75Hz-18kHz3dB Maximum deviation range: 50kHz (with level limit) T.D.: Less than 1.0%@1kHz S: 98dB Working range: up to 30m/98ft RF carrier stability: 0.005% (-10-50) Colour:As Shown Material:Plastic Package Contents: 1x transmitter 1x receiver 1x charging cable 1x transmission cable 1x earphone1x carrying bag 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.