No interference: The wireless guitar system uses UHF technology, high frequency, which has less than 4ms latency, no delay or no signal loss. The effective range is about 100 meters. It supports simultaneous broadcasts on 4 channels. Convenient Charging: Built-in rechargeable lithium battery, the working time is up to 6 hours after fully charged, and comes with a USB cable, two micro-usb plugs, the transmitter and receiver can be charged at the same time. Plug and Play: one end is connected to the instrument audio port, the other end is connected to the sound system, transmitting audio signals wirelessly, please see the user manual. With indicator light: transmitter and receiver indicator light, at start-up, the indicator light will indicate the channel number according to the corresponding channel flashing times. Later, the red light persists while in the transmission state. Common Use: Available for most electric guitars, bass, electric acoustic guitars, even. The most popular electric musical instruments, electric guitar, bass, bakelite guitar and other musical instruments with pickup. Material: PlasticColor: BlackPackage Contents:1 * Transmitter1 * Receiver1 * USB Charging CableOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Measurement error in