1. Conversion method: capacitive type 2. Frequency response: 40Hz-16KHz 3. Directionality: Heart-shaped orientation 4. Output impedance: 200 Ω 5. Sensitivity: -38dB±2dB 6. Supply voltage (V): DC9V/AC220V 7. Pre-pitch sound (when turned on, there is prelude music playing), light ring prompt 8. Mic tube length: 420mm 9. Mic cable length and configuration: 10 meters single core, Carousel+6.35 single channel interrupt 10. Weight of a single microphone: 0.67KG 11. Output and indication: unbalanced, seat light, tube light 12. Switch: Electronic Touch 13. Anti-mobile phone, electromagnetic, and high-frequency interference 14. Factory configuration: microphone, microphone cable, windproof cotton, instruction manual, certificate of conformity, warranty card, 9V battery, AC configuration, 220V power adapter