Features: brand new and high quality. The speed is quick, the anti-interference ability is strong, and the transmission performance is more stable. The 270° rotatable plug can cope with various position and angle sockets, which is more convenient to use. The LED display shows the current frequency band, volume and current battery level. It can be used for a variety of electroacoustic instruments such as electric blowpipe, electric guitar, acoustic guitar, bass, electric violin, mixer, etc. transmitter, can support multiple devices to receive, the transmission range can reach more than 50 meters. Built-in rechargeable lithium battery, long working hours, equipped with USB cable, charge more convenient. Specifications: Color: Black, Red Power: ＜75mA Frequency range: 570.5MHz-598.5MHz Frequency Response: 60Hz-17kHz Battery: 500mAh Packing List: 1 x Transmitter 1 x Receiver 1 x USB Cable 1 x 6.35 to 3.5mm adapter 1 x User Manual Note: Please refer to the measurement. Tiny measuring error is allowable in normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.