4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA With strong anti-inference ability, the sound reproduced is without any distortion and clear, reducing background noise.<br> 30-50m large mission distance, giving you more movement freedom, enjoy playing everywhere.<br> 6.35mm plug, plug and play, just connect the mitter to the guitar and the receiver to the sound output device, and then long press the start button, they will be paired immediately.<br> With the electricity indicator light, you can easily know the current power information and charge in time, and the battery is of large capacity, no worry of low eccentricity any more.<br> Both mitter and receiver are rotatable, more convenient for you to use.<br> They can support 99 sets to use at the same time, perfectly satisfying your needs.<br> Comes with USB cable for charging, can charge both mitter and receiver at the same time, convenient and time-saving.<br> : SWIFF<br> Model: WS-70<br> Channel Quantity: 100 channel<br> Distortion: Less than 0.05%<br> Signal-to-Noise Ratio: Greater than 85dB<br> Latency: Less than 2ms<br> System Frequency Response: 20~20KHz<br> Reception Sensitivity: Less than 110dbm@20dbsinad<br> mission Distance: 30~50m<br> Full Working Times: 5~6 hours (Circumstantial)<br> Colour:black<br> Material:plastic<br> Package Contents:<br> 1 x Guitar mitter<br> 1 x Guitar Receiver<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.