Right-click the volume icon in your taskbar, select "Playback devices," and ensure "Bluetooth Hands-free Audio" or "Stereo Audio" is set as the default device. Troubleshooting Common Errors
If Windows 7 shows a "Bluetooth Peripheral Device" error with a yellow exclamation mark, follow these steps to use a built-in generic driver: Intel® Wireless Bluetooth® for Windows 7* p47 wireless headphones driver windows 7 link
For most P47 headphones, the issue is a missing or Hands-Free Audio driver. You should download the driver corresponding to your computer's Bluetooth hardware: Intel Bluetooth: Intel Wireless Bluetooth for Windows 7 . Right-click the volume icon in your taskbar, select