Wireless headwear hearing aid, B39 wireless headphones | Bluetooth 5.0 | Long life battery | Ultra light | Suitable for iPhone, Android and PC, travel

400mAh battery: Mobile phones with noise cancellation function can provide 400mAh batteries for games. In addition, when the battery level is low, you can charge these wireless headphones through the convenient C-type playback port. Use a C-type cable.