Feature:1. Reliable Use: Using digital wireless transmission technology, has a long distance and excellent pickup effect as well.2. Better Sound: The UHF original sound transmission with good anti interference performance ensures great sound quality.3. Little Delay: Able to provide a full 20Hz‑20kHz frequency response, which enables 4ms delay, low noise and low latency.4. With Battery: The built in battery has a long working time up to 4 hours, and can be easily charged through USB cable.5. Easy Carrying: Comes with light weight and compact size, the simple storage and carrying suit for indoor and outdoor.Specification:Item Type: Wireless Guitar SystemMaterial: Plastic + MetalColour: BlackFrequency Range: UHFFrequency Bandwidth: 20Hz-20KHzTransmission Delay: <4msCharging Interface: Micro USBCharging Time: 2 HoursUse Time: 4 Hoursrequired Battery: Lithium battery 600mAh, 1pc for receiver and pc for transmitter (shipped with built in battery). .Package List:1 x Receiver1 x Transmitter1 x User Manual1 x Connecting Cable