DescriptionBuilt-in rechargeable battery, long working hours; and comes with USB cable for convenient charging. Plug and play, simple to use; compact size and lightweight, easy to carry.Features- Color: Blue - Material: plastic. - Size: 11.6x4.3x1.7cm - Battery: 600mAh - Delay: < 12.5ms - Range: 2.4GHz-2.483GHz - Frequency response: 20-20kHz - 2.4GHz wireless system, high fidelity and lower interfere output - Rotatable plug, more flexible to plug in. - Standard 6.35mm port, wide compatibility for musical instrument - Suitable for electroacoustic musical instruments like guitar, bass, etc. - A great gift for your friend and family.