Patent Certificate
TWS earphone testing machine
A noise reduction test device for wireless earphones
An audio test device for earphones
A test device for headphones
An audio analysis instrument with anti-drop function
A New Multifunctional Photoelectric Measuring Instrument
A multi-station audio testing equipment
A multi-spec test device for wireless earphones
A new test setup for wireless earphones
A dual-diaphragm horn testing device
Audio Test System for Earphone
multi-station monitoring system for Audio Equipments
Software Authorship Certificate
KK audio analyzer software V1.0
KK audio analysis software V3.1 (in application)
Enterprise qualification certificate
High-tech product certificate - audio analyzer
EU CE certification
High-tech Enterprise Certificate
ISO CERTIFICATE
