TWS Bluetooth V5.0 headphones and 600 mAh charging case: The Hurricane-HI True Bluetooth earbuds break the temples of the built-in cables and use the most advanced Bluetooth 5.0 technology to connect the device to experience music and HD calls in both ears. Bluedio Hurricane HI supports A2DP, HSP, HFP, AVRCP protocol. With a 600 mAh charging case, the earbuds can be charged up to 4 times to give you 20 hours of extra playtime.【 Face Recognition Technology Control】 Bluedio in-ear headphones no longer use infrared sensing technology to control music pause and play by introducing the latest in face recognition technology to control music pause / play. When you remove the right earbud, the music will automatically pause immediately and when you wear it the melody will play again. Let the ear enjoy the good sound of each frame and improve the real earphone usage time.One-Step Pairing & Ergonomic Design: The automated system gives you an easy experience in pairing and connecting devices. Just take them out of the box and open the left and right earbuds, the two earbuds will connect automatically, you just have to be ready to immerse yourself in your music world. Ergonomic design, does not fall off easily during exercise; Mini and ultra-light for comfortable wear and fit.HiFi Sound Quality: Hurricane True Wireless Stereo Earphones support advanced audio coding technology, separate vocals and musical instruments, offer a variety of music styles, and experience personalized sounds. The optimized combination of the newly developed loudspeaker and the high-quality membrane loudspeaker unit, combined with the smooth circuit, create a rich and wide sound field, more balanced medium and high frequencies and high-quality media. Pure sound, more natural.Short charging time and long playback time: approx. 1 hour charging time enables the earphone battery to be fully charged, while the charging case only takes 2 hours. The charging box can charge the headsets 4 times. Playback time can last 20 hours with the charging box.