1Suitable for all electronic musical instruments. Audio wireless transmitter and receiver set designed for guitar, bass, etc. 2Supports up to 10 devices to work simultaneously, one-to-one, without interference, and one transmitter can simultaneously send signals to multiple receivers. 3Built-in USB rechargeable lithium battery for long working hours. The power indicator light is clearly displayed and the double-ended USB cable is packaged to prevent the power off. 4Wireless guitar transmitter with 280-degree swivel 1/4" plug for instruments with input jacks in different positions. 550 meters long distance, signal stability, delay <2ms, sampling frequency is 24bit / 48kHz, high frequency response range: 30-18KHz.