DJI is the world's top drone supplier,Headquartered in Shenzhen, widely considered China’s Silicon Valley, they have grown from a single small office in 2006 to a global workforce. their offices can now be found in the United States, Germany, the Netherlands, Japan, South Korea, Beijing, Shanghai, and Hong Kong. As a privately owned and operated company, Today, DJI products are redefining industries. Professionals in filmmaking, agriculture, conservation, search and rescue, energy infrastructure, and more trust

DJI to bring new perspectives to their work and help them accomplish feats safer, faster, and with greater efficiency than ever before.

We Provide acoustic boxes for their productors sound test.

Acoustic Chamber is a chamber made of high-density metal and professional sound-absorbing materials, designed to reduce the impact of external noise on the equipment inside the chamber. It can also prevent the noise generated by the devices inside from spreading to the outside. Soundproof technology can be divided into two main parts: sound insulation and sound absorption. The calculation of soundproofing efficiency involves setting frequency points at one-third octave intervals within the working frequency range of the soundproof box, and testing and recording data with both open and closed doors, denoted as A and B respectively. The sound insulation level TL is calculated as B-A (dBA)."

Calibration Description

1. Reference documents and CNAS accredited scopes；

JJF 1147-2006 Specification for calibration of acoustic characteristics of anechoic and semi-anechoic chambers：Noise:(-2.5～120)dB;Sound Pressure Level:(-2.5~ 120)dB[31.5Hz～20kHz;d:(0.5～5)m]

Soundproof solution：

≥20 dB, 80Hz to 100Hz； 

≥25dB，100 to 200Hz； 

≥35db，200 to 400Hz； 

≥45db，400 to 1500Hz； 

≥50dB, >1500 Hz