Welcome to Shenzhen Kingsenyu Technology Co., Ltd

Quality Control

  • Audio Frequency Curves and Sensitivity Test

For the wireless stereo heaphones, they always come with the right and left channels.

To make sure the wireless headphones are with good acoustic performance, the basic parameters of the headphones must be tested and corrected before production.

The frequency response, frequency balance, THD(Total Harmonic Distortion) are all tested.

BLuetooth Speaker Sensitivity Test01.jpg

  • Audio Sweeper, Digital Oscilloscope

Test the capacity of the Lithium-ion battery that are installed into our products.

Diagnose of the electric load, the current, voltage and more parameters.

We have 18 signal shielding rooms for the left and right earbuds pairing.

Audio Sweeper for wireless headphone01.jpg

G&Z Digital Oscilloscope for tws headphone test01.jpg

  • Shielding box and Audio testing System

Audio Frequency tester01.jpg

Bluetooth testing system01.jpg

  • Aging Test Facility

Before packing the order, all the products must be aging tested to assure the charge case is working and full of power.

We have 6 aging test cabins, each cabin loads 500sets of earphones, toal 3000sets aging test completes per hour.

aging test04.jpg

aging test07.jpg

aging test05.jpg

Contact Us

    Tel: +86-0755-21057024

    Mobile: +86-18320786832

    E-mail: sales@kingsenyutech.com

    Skype: chrisxiong812

    WeChat: +86-18320786832

    Whatsapp: +86-18320786832

    Add: No. 1050, Kanghuai Industrial Park, No. 60, Ping’an Road, Dafu Community, Guanlan Street, Longhua District, Shenzhen City, Guangdong, China.