▶ Wireless BT5.3 Earphone: Compared to bt 5.0, the 5.3 version features and stable signal transmission, clear sound quality without skips and distortion and low consumption. Lenovo thinkplus headset bring you a better music experience.▶ Ergonomic Earhook Design: Soft silicon ear hooks ensure comfortable and secure wear in even intense and strenuous workout. A great combination of comfort and stability. Lightweight and ergonomic design.▶ IPX5 Waterproof: Internal nano coating protects the headphones from heavy rains or sweat throughout intense exercises; just enjoy your time when running, jogging, riding, hiking, fitness, or in the gym. Keep your headphones in good working order, even if you are drenched in sweats after a gruelling workout.▶ Excellent Sound: Support AAC/SBC audio decoding, bringing a rich music experience. Stereo headphones provide sound quality, the sound of immersive music scene surround sound, let you feel more realistic music!▶ Superior battery life and LED Screen: Built-in 55mAh battery in each earphone and built-in 55mAh battery in chamber, free to listen 30hrs music after the earphone chamber full charged. Design with led digital display that lets you know when it is the time.▶ Wireless BT5.3 Earphone: Compared to bt 5.0, the 5.3 version features and stable signal transmission, clear sound quality without skips and distortion and low consumption. Lenovo thinkplus headset bring you a better music experience.