1. Channel: 2 2. Ultra-low time lapse 3. Universal for mobile phones and computers 4. Battery life: 6-8 hours 5. Signal-to-noise ratio: 85dB 6. Input voltage: 220V 7. 20m barrier-free connection 8. 360-degree sound pickup 9. Frequency response range: 20Hz-20KHz 10. Built-in battery capacity: 80 mA 11. Strong anti-interference ability, effectively identifying the original sound 12. Automatic pairing, intelligent noise reduction, stable signal 13. Eat and broadcast, live broadcast, interview recording, and the radio is clear 14. Bluetooth 2.4GHz frequency, plug in and automatically connect for 1 second, no need to set up the connection 15. Note: VIVO/IQOO/Realme brand mobile phones need to search for "OTG" in the settings-turn on the OTG power supply for normal use 16. Unit weight: 0.18kg 17. Dimensions: 130 x 90 x 25mm