Professional UHF wireless microphone system is especially designed for saxophone and other wind instruments. It's easy to use, rechargeable, with stable performance and premium quality, suitable for both home and stage use. Features: Professional wireless system receiver & transmitter with microphone is especially designed for saxophone, as well as for other wind instruments if the clip size is available. Easy to be clipped on saxophone conveniently and firmly, protective rubber keeps your valuable sax from being scratched. Reliable UHF (790-820MHz), high signal-to-noise ratio, stable signal transmission. 6.35mm audio output plug, easy-to-read LCD display. Completed with configured 3.7V li-ion batteries, rechargeable and cordless, comes with USB cable for quick charging. Effective operating range up to 50m (164ft) in open areas. Suitable for stage performance, KTV, and home party use. Comes with a storage bag for easy portability. Note: 1.Size and color may be slightly different because of manual measurement and different light conditions. 2.The manual is a universal version, with a nominal frequency range of 550-960MHz that manufacturers can produce. Our actual frequency range for this product is 790-820MHz (please check with the local government before purchasing if it supports the use of this frequency range). Thanks for understanding. Specifications: Color: Black Material: Plastic & Metal Suit for: Saxophone French Horn Trumpet Trumbone --Comprehensive Performance: Frequency Stabilization: 90db Total Harmonic Distortion: 90dB Image & Spurious Rejection: >80db Border upon Channel Rejection: >80db Receiving Sensitivity: >10dBu (SINAD=30dB) De-emphasis: 75uS Battery: 3.7V 800mAh Battery Life: Approx. 4.5h Size: 7.5 * 5 * 1.5cm / 3 * 2 * 0.6in --Transmitter: Power: 30mW Modulation Type: FM Deviation: 25KHz Spurious Emission: >40dB Battery: 3.7V 500mAh Battery Life: Approx. 3.5h Size: 8.5 * 3 * 2cm / 3.4 * 1.2 * 0.8in Package List: 1 * Receiver 1 * Transmitter 1 * 3.7V Battery 1 * USB Cable 1 * Clamp Mic 1 * Mic Sponge 1 * Storage Bag 1 * User Manual (English)