Features: The 5.8Ghz wireless guitar Systems has great performances and strong antiinterference ability compared with the 2.4Ghz wireless Systems, low noise, low latency(less than 6mS). Builted in rechargeable battery, long working time, equipped with Charging compartment and USB cable, convenient charging. Easy to Use: Turn on the transmitter and the receiver, press the pairing button of the receiver, then press the pairing button of the transmitter for more than 2 seconds, then they're paired successfully. Suitable for guitar and bass, also for violins drum and other electronic music instruments. Rechargeable and easy to use, this wireless Systems is perfect for electric guitar and bass player who are ready to take their performances to the next levels. Specifications: Materials: Plastic Size: about 8.5x4.5x10cm/3.35x1.77x3.94inch Low latency: <6ms Usage distance:>20m/787.4inch Frequency response: 10Hz-22kHz Frequency band used: 5.8GHz Builted in rechargeable battery: 37v/500mah Charging time: 1hour (5V/1Amp) Battery life:>5 hours Number of channels: 4 Package Includes: 1x Receiver 1x Transmitters 1x Charging Compartment note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.