Features: [ Sound]: Our wireless ear monitor transmission system boasts a sampling rate of 24bit/48KHz uncompressed data transmission, ensuring sound. The frequency response is 20-20KHz, and1dB/-3dB, providing a full range of audio frequencies for a superior listening experience. [Low Latency]: With a stereo delay of less than 10.8ms and a mono delay of less than 4.5ms, our wireless ear monitor transmission system ensures real-time audio transmission, providing a seamless and uninterrupted listening experience. [Long Range and Multi-Device Support]: Our wireless ear monitor transmission system has an effective range of 30 meters outdoors or 20 meters through walls. It can support up to 4 groups of devices working simultaneously and supports one transmitter to multiple receivers, making it perfect for professional use in concerts, performances, and other events. [Long Battery Life and USB-C Charging]: The transmitter has a battery capacity of 780mA and the receiver has a battery capacity of 550mA, providing up to 6 hours of continuous use. The system supports USB-C charging, making it convenient to charge and ensuring long-lasting performance. [User-Friendly Features]: Our wireless ear monitor transmission system comes with a 3.55m interface and is made of durable ABS material. The receiver has 5 volume indicator lights for easy volume control. The system also supports a one-key mute function on the transmitter, providing flexibility and convenience for users. Specifications: Sampling Rate: 24bit/48KHz uncompressed data transmission Delay: Stereo less than 10.8ms, Mono less than 4.5ms Effective Range: 30 meters outdoor transmission distance or 20 meters wall penetration distance Frequency Band: 2.4G Frequency Response: 20-20KHz,and1dB/-3dB Material: ABS Interface: 3.55m Interface Battery Capacity: Transmitter 780mA, Receiver 550mA Battery Life: Up to approximately 6 hours Product Size: 4.2 x 2 x 6cm/1.7 x 0.8 x 2.4inch Note: Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Packing List: 1 x Transmitter 1 x Receiver 1 x Charging Cable 2 x Audio Cable 1 x Manual (English) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.