Æ?Comfortable Ear Hooks DesignÆ??These Ergonomically designed ear hooks of our Bluetooth headphones is both soft and durable, comfortable to wear and stay secure in place with 4 pairs different sizes ear-tips and a cord chip, makes it perfect for jogging, hiking, yoga, exercises, gym, fitness, travelling. Æ?IPX7 Waterproof ProtectionÆ??The IPX7 Waterproof nano-coating efficiently protects your wireless earbuds from sweat and water, it will pump up your energy and makes your running & workout more entertaining. Æ?Bluetooth 4.1+EDR & CSR Chip & Noise Canceling TechnologyÆ??This in-ear Bluetooth headphones with Mic can produces excellent HD stereo sound (deep bass & crystal clear treble), keep you isolated from static and environmental noises so that you can have clearer and more stable calls. Æ?Easy Button Control & 8 Hours Playing TimeÆ??Get full control over your music to adjust volumes, skip songs, play, pause and manage incoming calls (answer / end / reject) on headphones. The sports headphones is with 100mAh battery capacity and it provides up to 8 hours talk/playing time and 250 hours standby. Battery capacity of headsets is displayed on your phone. Æ?After Sales Service and CertificationÆ?? 30-Day Money Back & 1 Year Warranty is guaranteed for our ANBES Bluetooth earphones. We have achieved FCC, CE, ROHS, MSDS, BQB certification. Please feel free to contact us if any questions.