[Bluetooth 5.0 and HIFI sound quality] The latest Bluetooth V5.0 chip and high-quality audio sensor and audio, which can provide excellent sound quality, deep bass and more accurate bass response, and deeper extension of the frequency range. Answering calls, skipping songs, checking volume and even RGB light switch, you can control all the convenient operations right on the ear. [CVC6.0 Noise Reduction] Sendowtek wireless devices provide excellent listening experience by capturing clear speech. CVC6.0 can actively block external noise and use real-time audio calibration to maintain clarity, loudness and voice feeling. [Convenient Folding Design] Sendowtek wireless earbuds provide long-term comfort that matches your ability to Enjoy high-level playback performance all day long. The pads on the ears are made of advanced ventilated materials and are equipped with a unique rotating device that can be individually and flexibly adjusted depending on the shape of the head. The overall design is lightweight and comfortable to immerse you in the music. [Long Life Battery] Built-in 400mAh battery allows long-term use of your electronic devices with up to 12 hours of all-day talk time. All functions use VCV charging technology and 1 hour fast charging technology. At the same time, wireless headphones with low-energy technology can provide up to 180 hours of standby time.