Bluetooth V5. 0 with wireless earbuds： compared with the previous Bluetooth V4. 2 wireless earbuds, so here you are getting 2x faster transmission speed + more stable connectivity with no signal loss or music dropouts. The range is up to 50ft away. Never worry about any cut off during listening and controlling. We are making music playback and conversations smoother and clearer than ever. Make your lifestyle cool with Bluetooth 5. 0 earbuds One-step paring technology： open the box, you can seamlessly pair this device to your Bluetooth devices automatically without any problem. You don’t need any skills to use Wireless earbuds. In a couple of seconds, you will be in your euphonic music world. Breathtaking music quality： The unique stereo sound quality and design gives you the perfect sound, and you can feel the more realistic music. Crystal clarity and Deep, resonant bass with delicately tuned sound signature deliver immersive sound and put you on the stage center. Also combined its CVC 8. 0 noise reduction functionality, you’ll experience a whole new world of crystal-clear phone calls. Impressive 40H playtime: compact and lightweight magnetic charging case exclusively for you to carry wireless earbuds around. Bluetooth V5.0 massively reduce the level of power consumption, so you can get 6 hours of playtime (at 75% volume, multiple units tested with iPhone). 34 hours with the charging box and realistic music for several days. True Wireless Technology: No Trouble with Wire Tangle Anymore, Built-in Bluetooth 5.0 Chip, Offers Fast Speed, Stable Connection, Enable to 33ft Transmission. You Can Use the Twins Earbuds to Achieve Volume +/-, Play the Next / the Previous Songs, Answer/Reject Calls, Activate the Voice Functions.