【UPGRADED HIGH FIDELITY MUSIC QUALITY】Featuring Bluetooth 5.0 and HD rendering technology that produce incredible sound quality and authentic sound performance no matter in calls or listening to music. Provides faster pairing, stable connection and signal transmission . 【LATEST ONE-STEP PAIRING TECHNOLOGY】No need to press any button to activate the wireless headphones. This bluetooth earbuds can be automatically powered on and paired after taking them from the charging case. Meanwhile they can also be automatically powered off and charged after putting back into the charging case. 【EXCELLENT BATTERY LIFE 35Hrs】Built-in Extraordinary 55mAh battery and high efficient power chip in Bluetooth headphones. Provide up to 7hours playing time on a single charge. While the smart charging case can recharge 5 times after fully charged, so the total playtime can last up to 35Hrs. 【BUILT-IN DUAL MICROPHONES】With built-in microphone on both sides earbuds, allows you to make hand-free calls from either one. Provide clear and sound quality phone call. It means you can use separately or share the same music/movies with friends and enjoy the clear stereo sound by using both headset as you wish. (49)