Feature 1Reliable Use: Using digital wireless transmission technology, has a long distance and excellent pickup effect as well. 2Better Sound: The UHF original sound transmission with good anti interference performance ensures great sound quality. 3Little Delay: Able to provide a full 20Hz20kHz frequency response, which enables 4ms delay, low noise and low latency. 4With Battery: The built in battery has a long working time up to 4 hours, and can be easily charged through USB cable. 5Easy Carrying: Comes with light weight and compact size, the simple storage and carrying suit for indoor and outdoor.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). .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Receiver1 x Transmitter1 x User Manual1 x Connecting Cable