Wireless XLR transmitter and receiver, 5.8GHz band is optimal for Microphone wireless, Solid RF connection over a 100 feet range?normal) ,uncompressed wireless signal transmission, low noise and latency.Up to 105 dB signal-to-noise ratio provides clear, detailed audio at any volume. High Resolution 24-bit/48kbps audio. Broad 20Hz-20KHz frequency response. Dynamic Rang 105 dB. JOYO MW-01 wireless system aims to take the complexity and frustration, out of traditional wireless microphone systems. Creating a flexible, all-in-one solution that makes any your favorite microphones into wireless,ensures good performance for your every show. XLR transmitter and XLR receiver. Support 4 sets in the same place simultaneously. Works with any dynamic/Harmonic microphone, Audio mixer, PA system, Provides stable and reliable wireless transmission.Works with any active loudspeakers, Perfect for venues, weddings and mobile DJ's. Less than 5ms Latency?normal) , Simultaneous broadcasts on 4 channels. The built-in lithium battery provides 5 Hours?normal) of battery last longer and a stable wireless technology (rechargeable battery for Transmitter Receiver). Super Easy to Use and Efficient - Small and delicate, no complicated settings, plug and play design is convenient to use. You would find that the wireless mic system works very well for you and your setup from the moment you begin to use it! TIPS - In order to charge the transmitter and receiver properly, please use a 4.5V~5.5V charger. Otherwise, the battery may not be charged or damaged. How to Pair Transmitter and Receiver: 1. Turn on the receiver and the transmitter; 2. Connect the receiver to the microphone and the transmitter to the mixer or other equipment; 3. You can long press the channel switch button to pair up the channels of the receiver and the transmitter, the signal is to be paired up when the status indicator flickers blue; 4. When they're paired successfully, the status indicators on both of the transmitter and the receiver become blue. What you need to know: 1. This product supports one-to-one and one-to-many. 2. Please make sure the transmitter and the receiver keep a distance away from wireless router or other wireless devices during use. 3. Obstructions between the transmitter and the receiver may affect the transmission distance. 4. A maximum of 4 sets of transmitters and receivers can be used in the same place simultaneously. 5. If the red light flashes during use, it indicates low battery, please charge it in time. MW-1 Receiver Power Source Lithium battery Reception sensitivity -85dBm Received frequency 5.8GHz frequency Signal Distortion 0.02% SNR 105 dB Frequency response 20Hz - 20kHz Delay time 5ms Sampling rate 24-bit / 48KHz Output impedance 680 ? Port's type XLR male port MW-1 Transmitter Power Source Lithium battery Transmission power 7 dBm Working frequency 5.8GHz frequency Frequency response 20Hz - 20KHz Delay time 5ms Sampling rate 24-bit / 48kHz Input impedance 3.3K Port's type XLR female port Package Included: 1 * Wireless microphone system MW-1 Receiver 1 * Wireless microphone system MW-1 Transmitter 1 * Rechargeable Power Cable No Duty to Canada and USA FAST 'N FREE USA Shipping (typically about 4 days) Ships from Canada (depending on stock availability, may also ship from our Niagara Falls NY. location) *Just to be clear on DUTY, (regardless of what warns buyers of ) Canada and the USA have a trade agreement in place that allows US citizens to purchase/import up to $800 dollars per purchase in to the United States from Canada with NO Duty at all, State taxes are another story, some states charge a TAX some do not, BUT NO duty.