TWS Earbuds & Bluetooth 5.0 : High-performance Bluetooth 5.0 chip provides ultra-stable connection, faster paring and universal compatibility. Enjoy your music or make the phone call with joy anywhere. Bluetooth headphones can enjoy the stable transmission as wired ones.It also provides a perfect balanced bass without overpowering the highs and mids . You can enjoy the clear vocals with perfect balance. High capacity Charging case : The wireless earbuds can last for total 12 hours’ music play time on a single charge with built-in 400 mAh battery charging case which can recharge the true wireless earbuds upto 2 times. Fast Auto Pairing : The Bluetooth headphones are equipped with one-step auto-pairing technology, just take the twins earbuds out of charging case and the left and right will pair with each other. Then for first time , one time selection under Bluetooth setting to pair the earbuds. Next time , it auto pairs between left and right and the phone automatically. In Ear Design : Wireless headphones with ear canal ergonomics for Long Wearing , Noise Cancellation and Stable Fit .Three-Point Support makes the wearing more comfortable. They are more suitable for our ears, Not Easy to Fall. IPX4 Sweat Proof and Splash Proof ? IPX4 waterproof shell and interior Nano-coating technology protect the sports earphones effectively from rain or sweat during intense workouts. Perfect for running, jogging, hiking, yoga, exercises, gym, fitness, traveling and etc.