Professionell trådlös huvudbandsmikrofon för undervisningsförstärkning scenframträdande lärarföreläsning Bluetooth-ljud

Professional Wireless Headband Microfone for Teaching Amplification Stage Performance Teacher Lecture Bluetooth Sound Card Mic Product parameters Product Name: Wireless Earphone Microphone Working time charging time: 2 hours Bluetooth version: 5.0 Transmission distance: ≤ 10m Microphone head sensitivity: 53+-1 Mic sampg rate: 48K Features: Using UHF digital chips, transmission delay less than 1 ms, 10 frequency automatic locking, strong anti-interference ability· The transmission signal is more reliable, stable, with clear sound, and provides automatic frequency scanning pairing function· More convenient and simple to use. The standard 3.5 to 6.35 audio adapter is widely used in various types of speakers· The chips used in audio devices have their own low-power prompts and low-power shutdown functions· Using digital circuit processing technology, the signal-to-noise ratio is higher· The structure adopts high-strength ABS, which is beautiful and practical· More wear-resistant, with stronger U-band frequency penetration, more stable, and pure sound.