233621 vs 数据洪泽 Usage & Stats

233621 app is an intelligent extension of 233621 acoustic earphone. Connect your smartphone through Bluetooth, you can quickly set the function of the headset, and support OTA firmware upgrade to improve the headset, continuously improve your listening experience, and release the full potential of your 233621 Bluetooth product. In the future, we will continue to update the app to provide you with more functions and services