UPGRADED TRUE HD HIGH FIDELITY SOUND: Featuring latest Bluetooth 4.1 technology and state of the art acoustic components that produce incredible sound quality with deep bass and crystal clear treble. Connect Seamlessly With All Bluetooth Enabled Devices Up To 30 Feet Away. With Noise Suppression Technology Focus On Your Favorite Music And Answer Calls Without Skips Or Missed Words. - 02 | IPX7 SWEATPROOF EARPHONES: Weavom IPX7 Water-resistant Nano-coating efficiently protects sport headphones from sweat and ensure more guaranteed life span, perfect for running, jogging, hiking, yoga, exercises, gym, fitness, travelling and etc. - 02 | REDEFINE YOUR EARS IN RICHER RANGE: You may not get used to this earbuds with richer bass and mid at first if you used to use earbuds with flat or sharp sound. Thanks to the tuned driver, you can get superb bass sound, as well as richer and crisp sound with Weavom earbuds at the furthest degree that in-ear & Bluetooth-compression items can achieve. - 02 | ENHANCED COMFORT & WEARABILITY: Adjustable Ear-Hooks With Memory Metal Technology For Secure Fit - Activbuds Feature Ergonomically Designed Adjustable Ear Hooks With Gel Flex Silicone Earbuds To Ensure Your Headphones Stay Comfortably Firm In Place To Guarantee Fatigue Free Ears And Tangle Free Comfort Fit For Any Ear Size. Additionally come with 3 pairs of regular ear tips in different sizes for your custom fit. - 02 | 1.5-HOUR QUICK CHARGE FOR 7-9 HOURS PLAYING: Improved lithium polymer battery brings up to 7-9 hours pleasure musically and socially with a quick charge of only 1.5 hours. It will show the remaining battery power of the headphones on the iOS Phone screen. Note: 1. Weavom Flame has 12V over-voltage hardware cut off, 1A over-current restored fuse to achieve safe charging. 2. Please use charging cable provided, or certified brand charging cable. 3. We don't recommend using fast charging. - 02