【BLUETOOTH 5.0 & EDR TECHNOLOGY】--Compatible with all Bluetooth-enabled devices and other smartphones. Instantly connected to your smartphone or tablet from up to 33 feet away. | 【LONGER BATTERY LIFE WITH STORAGE BOX】--Equipped 700mAh battery in the portable magnetic charging box, Never worry about low battery when you are out all day. And each earphone has Built in 60 mAh lithium polymer battery, enjoy about up to 5 hours talk time after fully charged. | 【ADVANCED BLUETOOTH 5.0 AND STABLE SINAL TECHNOLOGY】--Support fast,easy pairing and stable connection with bluetooth device,up to 33 feet bluetooth range, With a built-in Microphone, you have complete control power on/off/answer or reject phone calls. | 【LIGHTWEIGHT AND SECURE FIT DESIGN】--Mini and comfortable design earbuds, only 4g for each, secure fit all shape of ears, so 100% safe and stable while running, biking, training, jogging, hiking, exercising Gym Exercise,Watching TV and so on. | 【Universal compatibility】 Compatible with all bluetooth devices Bluetooth-enabled phones, tablets and laptops. Pairing and connecting in just a few minutes.