Win7 system Bluetooth headset sound quality difference how to adjust

            The adjustment method of the sound quality difference of the Bluetooth headset of Win7 system is as follows:
1. Double-click the Bluetooth icon in the lower right corner;
2. Right click on the Bluetooth headset device and select to operate the Bluetooth device;
3. You can see the connection status. "Always listen to music", this should be connected, can not be disconnected;
4, open the Bluetooth device properties, switch to the "services" tab, check the "audio receiver" and click Make sure that if you check other items, it will slow down the sound;
5, finally check the playback device settings, you want to select the stereo high quality Bluetooth Headphone.