Bluetooth Headphones, Youngway Wireless Sport Stereo V4.0 Bluetooth Earbuds In-Ear Noise Cancelling Sweatproof Headset with Mic and Magnet Attraction for iPhone and Android (Red + Black) PERFECT Hi-Fi SOUND: CVC6.0 noise cancellation technology intelligently filters ambient noise to ensure clearer sound for calls and music playing. Your listening pleasure, comparable to full sized headphones in a convenient sport Bluetooth headset. QUICK AND EASY PAIRING: Just press the power button of the earphone until hear power on, your phone will discover it right away. Durable and sweatproof Designed, which could withstand heavy perspiration from workout activities. Headset power will show on your iPhone. STABLE IN-EARS DESIGN: Our wireless headphones unique magnet design, comfortable and secure rubber adapters allows for a quality and comfortable fit for greater stability during exercising, including running, cycling, workout or normal activities. PAIR WITH ANY 2 DEVICES: Our earbud can pair with 2 different Bluetooth devices simultaneously, such as an iPhone, iPad, Android phone and other Bluetooth enabled devices. This doubles the possibilities for answering calls and enjoying music with your wireless headphones, without having to reconfigure between use. This is a great convenience for those who use two cell phone (business and personal), without having to switch headsets every time the other one rings. WARRANTY: 12 Month Free Warranty. You can enjoy risk free use or perfect replacements within one year.