Ασύρματο μικρόφωνο κολάρου J13 για δύο άτομα με θήκη φόρτισης, μείωση θορύβου εγγραφής ζωντανής ραδιοφωνικής μετάδοσης

Frequency response range: 20Hz-20KHz Built-in battery capacity: 100mAh-300mAh (inclusive) Battery life: 3-6h (inclusive) Rated voltage: 5 Applicable objects: home use, computer, stage, camera dedicated, recording dedicated, musical instruments, radio and television dedicated, ktv dedicated, conference dedicated, interview dedicated, live crowd, other Radio head: capacitor Microphone type: collar microphone, computer Karaoke microphone, professional recording microphone, conference microphone, mobile phone Karaoke microphone, live broadcast microphone, home microphone Pointing feature: all-pointing/no-pointing Bluetooth version: 5.0 Wireless: None Rated power: 3 Whether it has a built-in battery: built-in battery Signal to noise ratio: ≥ 70dB