With strong anti-inference ability, the sound reproduced is without any distortion and clear, reducing background noise. 30-50m large transmission distance, giving you more movement freedom, enjoy playing everywhere. 6.35mm plug, plug and play, just connect the transmitter to the guitar and the receiver to the sound output device, and then long press the start button, they will be paired immediately. 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. Both transmitter and receiver are rotatable, more convenient for you to use. They can support 99 sets to use at the same time, perfectly satisfying your needs. Comes with USB cable for charging, can charge both transmitter and receiver at the same time, convenient and time-saving. Brand: SWIFF Model: WS-70 Channel Quantity: 100 channel Distortion: Less than 0.05% Signal-to-Noise Ratio: Greater than 85dB Latency: Less than 2ms System Frequency Response: 20~20KHz Reception Sensitivity: Less than 110dbm@20dbsinad Transmission Distance: 30~50m Full Working Times: 5~6 hours (Circumstantial) Colour:black Material:plastic Package Contents: 2 x Guitar Transmitter 2 x Guitar Receiver Only the above package content, other products are not included. 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.