Ofia HIFI Sport Wireless Hands Free Earphone

Stable bluetooth Signal Connection: bluetooth 4.1 technology, suitable for most IOS/Android devices, signal transmission more stable. The straight line distance of mobile phone communication can be up to 15m, back communication distance 10m.
-Noise Cancelling Technology: It can provide great listening experience though you're outside because its strong noise isolation technology. No noise will be heard when you put it in the ear.
-Long Play: After charging (up to 2 hours), sustainable music playback 4 hours, talk 5 hours, standby 200 hours.
-Magnetic Absorption Design: Built-in magnets let you attach the two headphones together when not using, and wear like a necklace around your neck, a convenient way to carry around when you don't need them. It's most convenient to hiking, cycling, sports, exercise, and more.
-Fit Design, Exercise More Convenient: Ergonomic design, ear earplugs, the sweat-proof design allows you to exercise more convenient.
-Can be Detached from the Phone's Music Player:  Find the TF jack, then insert the card, the headset will automatically switch to MP3 music player mode. No need to connect other devices to make music easier.-Simple Steps: Long press the function key for 3 seconds to switch machine, short press the function key to answer the call, long press 1.5 seconds to reject each other calls, when not playing the TF music, double-click the multi-function key to call back the last one phone call..