Description: Plug and play - UHF with 50m receiver stable transmission distance, stable signal, no delay, no interference. Built-in highly sensitive condenser microphone can perfectly capture the soundtrack, make the sound more clear and realistic. Spring clip-on design allows you to effortlessly position the microphone to pick up sound. Gooseneck flexes any way you please and stays in place so that its easy to fix on instruments. It can effectively filter the noise generated by the vibration of the instrument, effectively improve the degree of sound reproduction and make the performance perfect. This microphone is designed for wind instruments saxphone, wireless connections, plug and play. Specification: Material: Plastic Receiver: Frequency:660-690Mhz Channel:16 Receiver Sensitivity:-94dBm Frequency Response:80Hz-15KHz±3dB Plug:6.35mm Battery:3.7V lithium battery(Built-in) Transmitter: Frequency:660-690MHz Type:Capacitive Pickup: Cardioid Sensitivity:-47db±2dB RF:10mW Working Time:6hrs Package Includes: 1 Piece Microphone 1 Piece Receiver Note: Please allow slight dimension difference due to different manual measurement.