【Latest Bluetooth 5.0】 - These Bluetooth earbuds use the latest Qualcomm QCC3020 chip to support Bluetooth 5.0 technology, which is excellent in connection stability, signal effective distance, sound delay and system compatibility. It supports HSP, HFP, A2DP, AVRCP. | 【Intelligent Noise Reduction】- Built-in HD decoder and AAC/SBC audio coding technology, integrated microphone and CVC8.0 noise reduction technology, the noise reduction function will be continuously adjusted according to the cooperation of earplugs to reduce environmental noise. The improved built-in microphone and high-quality graphene driver provide excellent sound and heavy bass, allowing you to experience music, movies, podcasts, calls, etc. in a whole new way. | 【Portable charging case】- When fully charged, Bluetooth headset can provide up to 4-5 hours of playback time. Equipped with a 650mAh portable charging box, it can provide 5 additional charges, so you can use a total of 24 hours. You can spend a day in a situation of power shortage, so as to get plenty of musical joy in the day's activities | 【Comfortable and lightweight】- Perfect ergonomic design to ensure close comfort. Each earplug weighs only 3 grams, which can firmly fit your ears and provide a long-term comfortable wearing experience. The compact design allows you to put them in your pocket for easy going out. | 【IPX5 Waterproof and Warranty】 - IPX5 waterproof grade can easily resist sweat and rain, even if it rains, don't worry. Each headset undergoes multiple tests before being sent out to ensure the normal use of the headset. If you receive a defective product or have any questions during use, please feel free to send us a message, we will reply to you as soon as possible!