[Upgraded Version] Senbowe Magnetic Bluetooth Headphones,Wireless Bluetooth Headphones/Headset Noise Cancelling Earbuds/Microphone [ Sports/Running/Gym/Sweatproof ],Secure Fit for Sports Bluetooth 4.1:the bluetooth signal is much stable than any similar bluetooth headsets in the market,supports connecting two devices simultaneously and automatically after being paired successfully for the first time,high-fidelity stereo sound quality with technical aptx codes. CVC Noise Isolation: with the most advanced noise cancellation technology, can filter out background noise to guarantee high quality sound quality including the super bass,middle and high pitch,great use in the gym or any other noisy environments. Magnets Design:You can attach the bluetooth headsets together when you do not use them,wearing the headset around the neck like a necklace, very fashionable and a convenient way to carry them when you do not use them. Long Battery:Up to 7 hours talk time/music time with the high capacity 100mAh battery,150 hours of standby time and charges in 1-2 hours.Super lightweight design with only 0.53 ounces,you will do not feel nothing when you are at the gym and working out. In-line Mic and Volume Control: with humanized design,the mic and volume control button is built on the headset line,easy and convenient to operate with daily use. Earpieces are made using machined aluminum alloy, creating great look on the outside and maintaining steady airflow inside.