The U4 personal wireless monitoring system delivers great sounding audio to your favorite in-ear monitors. Enhance your stage performance with freedom from wires with U4 s easy to use and portable plug-and-play design. Built using the highest quality components housed in a durable metal chassis ensures reliable wireless performance at every show. Specifications Wireless Type 2.4GHz band is optimal for wireless, Approved for use worldwide. Musical applications Works with any audio mixer or other gear with a line level balanced or unbalance audio output. Great for live performance, studio recording and rehearsals. Other applications Theatre, House of Worship, Schools, Corporate Presentations Audio Frequency Response 20Hz 20KHz (-3dB) Working Range 90ft.Actual range depends on RF signal absorption, reflection and interference. Sampling Rate High Resolution 24-bit/48kbps audio Dynamic Range 107dB Signal-To-Noise Ratio Up to 107 dB signal-to-noise ratio provides clear, detailed audio at any volume. Battery Life Up to 5 hours Delay time 5ms Latency, Simultaneous broadcasts on 6 channels Input Mono balanced XLR or mono unbalanced 1/4 TS input with supplied adaptor Headphone type Provides smooth frequency response with any headphones with 3.5mm connector. ALL WIRELESS PLUG-AND-PLAY Easy to carry, easy to set up, plug in and turn on the power to build your wireless In-ear monitor system Input Mode LINE MODE Use with mixers or other professional audio devices that send line-level signals. Does not come with any Headphones or earbuds AUX MODE Use when connecting consumer audio devices such as portable audio players or computers. POWERFUL HEADPHONE DRIVE Provides smooth frequency response with any headphones. LIVE PERFORMANCE MONITOR Transmitter with the 1/4 ts conversion put in to the mixing Aux channel, set transmitter to aux mode. Or Transmitter put in the mixing XLR main output for Band playing, silent rehearsal etc.. set transmitter to Line mode. MULTIPLE RECEIVERS Use one tra...