High-quality wireless audio transmission system(transmitter + receiver) for guitar, and other instruments. 2.4GHz wireless transmission, 24bit/48KHz sample rate.30 meters effective outdoor distance or 15 meters distance to through the wall. Support 3.5mm and 6.35mm plug, 190° rotating device, it is available for most of the electric instruments. Up to 4 groups of equipment can be used simultaneously in the same environment. Built-in rechargeable lithium battery, working time is up to 4 hours, and with a Type-C cable for convenient recharging, which ensures good performance for your every show. Delay: Less than 6.7ms Dynamic Range: 105dB Frequency Response: 20-20KHz, +1dB/-3dB Wireless Band: 2.4GHz Sample Rate: 24bit/48KHz Battery Capacity: Transmitter: 600mAh, receiver 300mAh Colour:Black Material:ABS Package Contents: 1x Guitar Wireless Receiver 1x Guitar Wireless Transmitter 1x Charger Case 1x USB Cable 1x English manual 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.