Features 1.EASY TO USE: U3 Wireless System is designed to eliminate the complexity and frustration of traditional wireless microphone systems. Create a flexible all in one solution that makes any microphone you like wireless, ensuring great performance for every show. 2.STABLE TRANSMISSION: 2.4GHz band is the best choice for XLR microphone wireless system, less than 3ms latency, uncompressed wireless signal transmission within 30m range, low noise and latency for stable RF connection. 3.CLEAR SOUND: Wireless microphone adapter has a signal to noise ratio of up to 110dB, providing clear, detailed sound at any volume. High resolution 24 bit 48kbps sound, 20Hz to 20KHz frequency response, 110dB dynamic range. 4.SUPPORT OBJECTS: XLR transmitter and XLR receiver can be used with any dynamic or harmonic microphone, mixer, PA system to provide stable and reliable wireless transmission. Works with any active speaker, perfect for venues, weddings and mobile DJs. 5.BULT IN BATTERY: XLR wireless microphone adapter has a built in lithium battery that provides normal 5 hours of battery life for longer, as well as stable wireless technology (rechargeable batteries for transmitter and receiver). specificationItem Type: XLR Microphone Wireless System_x000D_ Material: Metal, ABS_x000D_ Sampling Rate: 24 Bit 48kbps Sound_x000D_ Tuning Bandwidth: 470?960MHz_x000D_ Sound Response: 20Hz to 20KHZ (?3dB) ( Depending On Microphone Type or Input Signal)_x000D_ Working Distance: 30m/32.8yd_x000D_ Delay: 3ms_x000D_ Dynamic Range: 110dB_x000D_ Number of Channels: 20 Channels_x000D_ RF Sensitivity: ?88d Bm_x000D_ Number of Channels20 Channels_x000D_ Total Harmonic Distortion: 0.2%_x000D_ RF Output Power: 10 Mw E.L.R.P. Maximum_x000D_ Operating Time: 5h_x000D_ Support: Dynamic Microphone, Connect Mixer and Amplifier Speaker_x000D_ Battery Type: 2000mAh Lithium Ion Battery (Built In) PackageList 1 x Transmitter 1 x Receiver 2 x Dynamic Microphone Converter 2 x Charging Cable 1 x Gasket 1 x Instruction Manual