Item Type: Guitar Audio Wireless System Material: Engineering ABS + electronic components + metal System Frequency Response: 20-20KHz Receiving Sensitivity: 85dB Transmission Distance: Approx. 30-50m / 98.4-164ft Delay: <2ms Full Power Working Time: 5-6 hours (different depending on the environment) Battery Type: Rechargeable lithium battery (included) Battery Capacity: 700mah How to Use: Power on: When the transmitter and receiver are off, press and hold the button for 2 seconds, the circle indicator light is steady green, and the device is successfully booted and enters the normal working state. Power off: When the transmitter and receiver are turned on, press and hold the button for 2 seconds, the circle indicator light goes out, and the shutdown is successful. Package List 1 x Wireless Transmitter 1 x Wireless Receiver 1 x Dual USB Charging Cable 1 x User Manual The device uses a polymer lithium battery, and the device needs to be charged before using the device; if it is not used for a long time, the product is activated once every three months. 1This wireless device supports simultaneous use of multiple sets of devices, has independent transmission channels, will not interfere with each other, and one-to-one startup and testing can avoid signal crossover. 2The transmitter of a wireless system can be used with the receivers of dozens of wireless systems, which can satisfy the wireless system of multiple musical instruments on the stage. 3Can perform code debugging for 20 seconds to realize onetomany function, simple operation and powerful function. 4If there is audio interference during use, you can directly short-press the frequency hopping button on the transmitter to perform frequency hopping. 5Built-in rechargeable lithium battery, and equipped with 4 green lights to display the current power information at a glance. 6The transmitter is connected to the guitar, and the receiver is connected to the effector, audio, etc., the signal is stable, and the transmission distance is up to 3050m.