If the Bluetooth connection on your A100 is dropping out during playback try the following troubleshooting steps;
1. If there are other Wi-fi or Bluetooth enabled devices nearby, move to a location where there are no interfering devices
2. Ensure there are no objects in the line of sight between your ear buds and device
3. Move the ear buds closer to your device to see if this resolves the issue
4. Try connecting the ear buds to a different device and audio app, to see if the issue persists