Features: 1.The product indludes a wireless transmitter and a wireless receiver, suitable for musical instruments such as guitar and bass. 2.4G uncompressed wireless signal transmission of the transmitter and receiver will cause low noise and delay. 3.With built?in rechargeable battery and USB cable, the guitar transmitter and receiver can realize long working hours and is easy to charge. 4.With professional design and reasonable structure, the receiver and transmitter is easy to use and operate. 5.High quality material can make sure the durability and stability of the product. specification:Item Type: Guitar Transmitter Receiver Frequency Range: 2.4GHz-2.483GHz Frequency Broadband: 20Hz-20kHz Transmission Delay: Less than 12.5ms Charging Port: USB Charging Time: 2 hours Use Time: 4 hours Product Size: Approx. 135x43x17mm / 5.3x1.7x0.7in Power Supply: Built-in 3.7V 600mah rechargeable lithium battery PackageList:1 x Transmitter 1 x Receiver 1 x USB Cable 1 x User Manual