1.Five modes to switch at Built-in sound card to filter environmental noise Sound is clean and transparent. 2.Bluetooth connection is super convenient KTV live broadcast, recording and transmission are more stable and you can enjoy the fun anytime and anywhere. 3.360° rotation Built-in sound card, filter out environmental noise, sound clean and transparent. 4.One-click noise reduction caps Long the volume button to intelligently reduce noise and give you high-quality sound. 5.Restore real sound the trouble of charging and running out of power on your phone. When your phone runs out of power, you can continue live streaming and recording by connecting it to the phone port or USB port. Sensitivity range: -43±1dB RL=2.2KQVs=1.5V (1KHz 0dB=1V/Pa) Impedance: 2.2KΩ Frequency: 40-18000 Hz Directivity: Cardioid (0.-180., 250Hz -5000HZ 10db) Current consumption: Max.0.5mA Working voltage range: 1.0V-10V Maximum sound pressure level: 125dBS.PL Signal-to-noise ratio: 66dB Sensitivity reduction: 3V-1.5V sensitivity change is less than 3dB (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: Metal Package Contents: 1 x USB Microphone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.