Description: Name: 2 Wireless Guitar System Model: WS-4; Color: White, black (optional); Transmission sound quality: 48k/16bit lossless electronic transmission; Transmission frequency: 2 ISM band; Transmission distance: outdoors transmission 40 meters, through the wall transmission 20 meters; Transmission delay: 12ms; SNR: -98db; Distortion degree: <0%; Dynamic range: >105db; Frequency response: 20-20KHz+1db/-3db; Audio head rotation Angle: 282°; Use multiple devices on the identical time: 8 groups; Battery: Rechargeable lithium battery with quick circuit protection, one-to-two TYPE-C charging; Packing list: 1 x transmitter 1 x receiver 1 x USB cable 1 x handbook 1 x packaging field