1.Plug and Play: Supports 4 sets of devices working simultaneously, wireless transmitter-receiver one-to-one and no-interference; and one transmitter can transmit a signal to several receivers at the same time also. 2.Impressive Perform: Crystal-clear sampling at frequency range spanning 10Hz to 22kHz, you can capture and transmitted the most subtle of nuances with our wireless guitar system Transmitter Receiver. 3.20m Stable and Clear Signal Transmission: Our wireless transmitter-receivers apply 2.4GHZ Chip, uncompressed signal transmission, low noise, and latency, the effective range is about 20 meters. 4.Suitable for Variety Occasions: 270° rotatable plug design. Fit for all the electronic music instruments with a 6.35 jack. 5.Long Working Time and Rechargeable: Built-in rechargeable lithium battery, working hours over 10 hours for 1.5 hrs charging, the package of wireless transmitter-receiver comes with a USB cable for convenient recharging.Plug and Play: Supports 4 sets of devices working simultaneously, wireless transmitter-receiver one-to-one and no-interference; and one transmitter can transmit a signal to several receivers at the same time also.