protected override void OnPebbleDisconnected( PebbleDisconnected pebbleDisconnected )
        {
            _pebble.UnregisterCallback<MusicControlResponse>( OnMusicControlReceived );

            base.OnPebbleDisconnected( pebbleDisconnected );
        }
 protected override void OnPebbleDisconnected( PebbleDisconnected pebbleDisconnected )
 {
     base.OnPebbleDisconnected( pebbleDisconnected );
     _timer.Stop();
 }