Feature: 1. The wireless transmitter supports 4 devices to work at the same time, one to one, low noise, no interference. 2. Equipped with LED channel indicator, the guitar wireless receiver has small and stable frequency distortion. 3. The wide response frequency is 20‑20KHz, which ensures that you will hear the full frequency of guitar and bass. 4. With a long effective range up to 30 metres, you will have a free and relaxing playing on the outdoor stage. 5. Wireless design adds more convenience to your performance, and the small size also makes the carrying easier. Specification: 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 Receiver1 x Transmitter 1 x Connecting Cable1 x User Manual Note: 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.