Feature: 1. 【Compact and Portable】: This wireless transmitter and receiver for electric guitar and wind instruments is designed to be mini and lightweight, making it incredibly convenient to carry around. Whether you\u0027re going to a gig, rehearsal, or just practicing at home, this device is easy to take with you wherever you go. 2. 【High-Quality UHF Transmission】: Utilizing UHF transmission technology, this device offers high fidelity sound reproduction, stable signal, and strong anti-interference ability. This ensures that your music is transmitted clearly and accurately, without any loss in quality or interruptions. 3. 【Rotatable Plug and Adjustable Volume】: The transmitter features a rotatable plug, designed with engineering angles to meet the needs of most instruments. It also has an adjustable volume function, making it easy to control the sound level to your preference. 4. 【Long Battery Life】: With a built-in lithium battery, this device offers a long-lasting performance. This means you can play for extended periods without worrying about the battery running out, making it perfect for performances, rehearsals, or long practice sessions. 5. 【Versatile and Easy to Use】: With 6.35mm and 3.5mm dual plug design, this device is suitable for a wide range of instruments including electric guitar, electric bass, wind instruments, electric drums, and sound systems. It\u0027s also incredibly easy to operate with a one-button power switch and frequency adjustment. Plus, it supports multiple devices being used simultaneously with 10 built-in frequency points, ensuring no interference between each device. Specification: Item Type: Wireless Guitar System Mode: Digital frequency modulation Frequency Range: UHF 630-650MHz Preset Frequency: 10 (auto paring) Frequency Response: 75Hz~18kHz ± 3dB Maximum Frequency Offset: ± 50kHz (with level limit) T. H.D.: <1.0% at 1kHz S/N>: 98dB Working distance: 164 ft Frequency Stability: ± 0.005% (-10℃ -+50℃) Delay: >3ms Built in Li Battery: Transmitter 700mAh,Receiver 500mAh Use time: Transmitter for 5 hours, Receiver for 6 hours Product Size: 10.8 x 3 x 1.8cm/4.2 x 1.2 x 0.7inch Package Weight: 143g/5oz. Package List: 1 x Receiver 1 x Transmitter 1 x Charging Cable 2 x 6.35mm Adapter Note: 1. Ensure that the receiver has sufficient power and cannot be used while charging. 2. Insert the receiver into the MIC audio input port of the audio device. 3. Turn on the power switch (be sure to turn off the power when not in use)When the signal indicator light (green light) of the receiver is on, it indicates successful connection to the transmitter. (The receiver and transmitter need to maintain a certain distance, and if they get close, they will disconnect)