code: public void readDeviceInfo(final Callback<DeviceInfo> callback) {
          gattClient.getDeviceProfile().getDeviceInfo(new DeviceInfoCallback() {
              @Override
              public void onDeviceInfo(DeviceInfo info) {
                  callback.onResult(info);
              }
          });
      }
docs: Read the device information (hardware, firmware and software version)
  
  @param callback the callback for the result