HSA vs Decibel meter test

After connecting App to Car Amplifier with Integrated DSP,  EQ, BASS, TIME ALIGNMENT, PHASE, MUTE, FILTER , SAVE SOUND SETTING TO PHONE, SAVE SOUND SETTING TO AMPLIFIER, LOAD SOUND SETTING FROM PHONE, RCA OUTPUT etc could be controlled through this App. How to use: 1.Install App and turn on power of car 2. Turn on Bluetooth on your iPhone 3,Open App and wait for around 5 seconds, then click “Connect” icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click “Save to AMP” icon to save. Or click “ Save to Phone” to save.   Note： 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.

Decibel meter testing is a practical noise detection tool that helps you easily measure environmental noise levels. The main functions include: Decibel testing: Real time measurement of the decibel value of the current environment, providing accurate noise data. Surrounding noise detection: real sceneShoot and record the noise level of the surrounding environment. Test records: Automatically save historical measurement records for easy viewing and analysis at any time. Simple and easy-to-use, helping you better manage noisy environments. Download now and experience the precise noise measurement function! Subscription instructions: Subscription cycle price: consecutive weeks/48 yuan 24 hours before the VIP privilege expires, the iTunes account will be automatically charged and the renewal fee will be determined. Cancel automatic renewal: To cancel automatic renewal, please manually turn off the automatic renewal function in iTunes/Apple ID settings management 24 hours before expiration. If the subscription is not closed at least 24 hours before expiration, it will be automatically renewed. Privacy Policy: https://ucnscm5vnp13.feishu.cn/wiki/IxgSw8T29iJYeUkJMFzctlHNnGb?from=from_copylink Terms of Use: https://ucnscm5vnp13.feishu.cn/wiki/JZZKwLU0Dimit8kAncBcqAhdneH?from=from_copylink