[Multiple Receiver Support]: This wireless in-ear monitor system supports one transmitter to multiple receivers. This makes it Perfect for bands, choirs, or any group performances where multiple members need to monitor the same audio feed. [Real-Time, No-Latency Transmission]: Utilizing UHF high-frequency transmission, this system offers real-time, no-latency audio delivery. This ensures that performers can hear the audio feed exactly when it's happening, which is crucial for timing and synchronization during performances. [Wide Wireless Range]: With a wireless transmission range of up to 60 meters, this system offers plenty of flexibility for performers to move around or in the studio. This allows for more dynamic and engaging performances without being restricted by cables. [Versatile Audio Output Support]: This wireless IEM system supports a wide range of audio outputs including sound cards, mixing consoles, headphone amplifiers, mobile phones, and computers. This makes it a versatile solution for various audio setups and requirements. [Compact and Portable]: The compact and portable design of the receiver allows it to be easily clipped onto clothing or placed in a pocket. This ensures that performers can move freely without being encumbered by bulky equipment. The system also features a one-button frequency switch for easy operation. Modulation Mode: Digital Frequency Modulate Frequency Range: UHF 630~690MHz Preset Frequencies: 8 (auto paring) Frequency Response: 75Hz~18kHz3dB Max.Deviation Range: 50kHz (with level limiting) T.D.: Less than 1.0%@1kHz S: 98dB Working Range: Up to 30m/98ft RF Carrier Stability: 0.005%(-10-50) Receiver: Mode of Transmission: Mono Power Supply: 3.7V Power Consumption: 500mA Battery Life: 4.5 hours Colour:Black Material:ABS Size::7x2x4cm Package Contents: 1 x receiver 1 x transmitter 1 x charging cable 1 x collar microphone 2 x connecting cable 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.