1、With 180° rotatable joint, suitable for most acoustic instruments. And built‑in lithium battery, USB environmental protection charging 2、Up to 6 pairs of wireless systems can work simultaneously in the same environment. 3、Frequency response is 20Hz‑20KHz 48KBz 24bit, enjoy the high‑quality sound and overtone. 4、With 6.35mm international audio plug, smoothly without jamming when plugging and unplugging. 5、Effective range is less than 30 meters outdoor transmission distance or 15 meters through wall distance. 1 x Transmitter1 x Receiver1 x Data Line1 x User Manual Item Type: Wireless Guitar Audio TransmitterSampling Rate: 24bit/48KBz uncompressed data transmissionDelay: <8~12msEffective Range: ≤ approx. 30 meters / 98.4ft outdoor transmission distance or approx. 15 meters / 49.2ft through wall distance.Distortion Rate: -98dB Dynamic Range: >105dBFrequency Band Used: 2.4GHz ISM bandFrequency Response: 20-20KHZ, +1dB/-3dB