Since I started this wireless headset, my morning running experience has been greatly improved. The deep bass of headphones makes me feel more rhythmic in sports. Bluetooth 5.0 has a stable connection and never drops the line. Even in sweat, they still fit firmly, so I don't have to worry about the waterproof performance of IPX5. When talking, the microphone is clear, which can easily cope with outdoor noise interference. The charging box is small and portable, which can replenish electricity anytime and anywhere. It is really a good companion for sports life! The delivery time is earlier than expected by the delivery center.