Bluetooth Headphones Wireless Bluetooth Earbuds Headset Earphones Noise Cancelling,Running, Exercise,Hiking Sports;Sweatproof. Suitable for IOS & Android Devices (black) Q9 Featuring latest Bluetooth 4.1 and APT-X + EDR audio decode tech, strengthens the signal twice times ,stronger than the common one. Supporting 33ft (10meters) working range. Hi-Fi Stereo Sound:CVC6.0 noise cancellation tech intelligently filters ambient noise to ensure Hi-Fi Stereo Music Sound and Strong Signal. Let you get high quality and clear voice. Built-in rechargeable 170mahLithium-poly battery. Can last up about 6 hours while listening to music or talking on the phone. This powerful rechargeable battery has up to 150 hours of standby time. Comfortable Light Weight:As light as 15 grams. Ultra light weight does not cause any burden to the ears, thus providing lasting wearing comfort.