FM Microphone Wireless Headset Small Amplifier Head-Worn Microphone<br> 1. Note: The FM high-fidelity wireless microphone needs to be used with the FM radio function audio or power amplifier, amplifier, etc., and cannot be independently amplified.<br> 2. As long as there is FM FM radio function, switch to FM radio function after power on, and the same frequency points are consistent, you can wirelessly amplify<br> 3. 225 wireless transmission channels, covering the 87-108MHZ frequency band<br> 4. Microphone loudspeaker, no whistling<br> 5. Battery capacity: 250mAH<br> 6. Use time: 6-12 hours<br> 7. Sound pressure level: greater than or equal to 130 decibels<br> 8. Frequency response: 30Hz-20KHz<br> 9. Output power: 16mW<br> 10. Weight: 30 grams<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin