Compact wireless transmission system, built-in lithium battery, plug and play, easy to operate. 2.4G uncompressed wireless signal transmission, low noise and latency, Wireless microphone system effective range is about 30 meters. Not only suitable for XLR microphones, but also for guitar audio reception. Guitar Wireless Built-in rechargeable lithium battery, long working hours, and comes with USB cable for convenient recharging. feature: 1]Compact wireless transmission system, built-in lithium battery, plug and play, easy to operate. [2]2.4G uncompressed wireless signal transmission, low noise and latency, Wireless microphone system effective range is about 30 meters. [3] Not only suitable for XLR microphones, but also for guitar audio reception. [4]Guitar Wireless Built-in rechargeable lithium battery, long working hours, and comes with USB cable for convenient recharging. Color: Black Material: ABS+Metal Specification: 1 to 1 Package Contents: 1 set of Wireless microphone mixer adapter