Features 1、【High-quality Wireless Transmission】: The 2.4GHz wireless IEM system provides a stable and reliable signal, allowing you to enjoy uninterrupted audio monitoring on stage or during live broadcasts. With its range of 30 meters outdoor or 15 meters wall distance, you can freely move around without worrying about signal dropouts. 2、【Versatile Functionality】: The rechargeable transmitter and receiver can easily switch between stereo and mono modes, catering to different devices and occasions. Whether you're connecting it to your smartphone, sound card, or mixer, this wireless audio transmitter and receiver will deliver crystal-clear sound quality specifically designed for monitoring purposes. 3、【Convenient Multi-receiver Support】: This wireless IEM system supports multiple receivers simultaneously receiving signals from a single transmitter, making it ideal for group performances or team uses. Simply pair the receiver with the transmitter by quickly double-clicking the pairing button, and the green indicator light will confirm a successful connection. 4、【Long-lasting Battery Life】: With a built-in 3.7V, 500mAh rechargeable battery, the transmitter and receiver have an impressive battery life of approximately 10 hours. You can rely on this wireless IEM system for extended periods without worrying about interruptions or having to frequently replace batteries. 5、【Professional-grade Performance】: Designed with musicians and performers in mind, this wireless IEM system boasts a frequency response of 20 to 20KHz, +1dB / -3dB, providing accurate and balanced audio reproduction. Its signal-to-noise ratio of -98dB and dynamic range of greater than 105dB ensure exceptional clarity and fidelity, allowing you to fully immerse yourself in your performance or audio experience. Specifications: Wireless Band: 2.4GHz Range: 30 meters outdoor or 15 meters wall distance Delay: ≤8ms Signal-to-noise Ratio: -98dB Dynamic Range: >105dB Frequency Response: 20 to 20KHz, +1dB / -3dB Battery Capacity: 3.7V, 500mAh Battery Life: About 10 hours Charging Device: USB charging cable Product Style: Transmitter Receiver Set, Single Receiver (optional) Product Size: 4.5 * 1.8 * 6.3cm/1.8 * 0.7 * 2.5inch Package List 1 * Receiver 1 * Charging Cable