Tel: +86-13302916851

China Shenzhen Baichuan electronics Co., LTD

Professional manufacturer of acoustic test instruments.


Electroacoustic test accessories/

BC821 Shielding Box

BC821 Pneumatic Shielding Box is a pneumatic shielding box welded with steel plates. It provides RF shielding for testing Bluetooth, WIFI and other products. It is suitable for the acoustic performance testing of electroacoustic products, such as ANC headphones, ANC in-ear headsets, and microphones.

Technical specifications
Shielding effect 0.8GHz~3GHz ≥ 60dB
Effect of soundproofing Exterior noise ≤ 80 dB; interior noise ≤ 40 dB
Working dimension (mm) (L)400×(W)600×(H)420 ± 5mm
Box dimension (mm) (L)550×(W)760×(H)550 ± 5mm
Overall dimension (mm) (L)660×(W)880×(H)630 ± 5mm
Material Steel plate + sound-proof and acoustic materials
Appearance and color White
Working air pressure 0.45MPa~0.6MPa

  • Product Detail
  • interface specifications
  • After-sales services

Test Box made of welded steel plates can provide RF shielding for testing Bluetooth, WIFI, and other products to avoid mutual interference of production lines. Meanwhile, it provides a soundproof detection environment for testing the acoustic performance of products. The pneumatic opening and closing can be controlled through its serial port.

N-SMA Characteristic resistance = 50 Ω; frequency range: DC – 6 GHz
Characteristic resistance of BNC Characteristic resistance = 50 Ω; frequency range: DC – 6 GHz
USB2.0 Standard 2.0 data transmission speed: 480 Mbp/1.8 A
DB9 Standard serial transmission/communication port; DC withstand voltage: 0 – 100 V / 1.6 A
AC AC: 0 – 500 V / 10 A

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