Item Type: Guitar Wireless Transmitter Receiver Material: Metal Colour: Black Ultra-Low Latency: <5ms Effective Range: Approx. 30metre / 98.4ft Frequency Response: 20-20KHz, +1dB/-3dB Working Frequency Band: 2.4GHz ISM Frequency Band Worldwide Total Harmonic Distortion: <0.05% (1KH at -10dbFS) Battery Type: Lithium Battery (built-in battery shipped) Battery Capacity: 750mAh Package List 1 x Receiver 1 x Transmitter 1 x Connecting Cable 1 x User Manual Crosstalk may occur when using this product in an environment with a large number of radio frequency signals. You can use your smart phone with a free application to detect your surrounding environment. 1The wireless transmitter supports 4 devices to work at the same time, one to one, low noise, no interference. 2Equipped with LED channel indicator, the guitar wireless receiver has small and stable frequency distortion. 3The wide response frequency is 2020KHz, which ensures that you will hear the full frequency of guitar and bass. 4With a long effective range up to 30 metres, you will have a free and relaxing playing on the outdoor stage. 5Wireless design adds more convenience to your performance, and the small size also makes the carrying easier.