Original Xiaomi Mi Sports Bluetooth Headset Bluetooth 4.1 Music Earbuds Mic IPX4 Waterproof Wireless Earphones for Xiaomi Mi6

• Bluetooth 4.1 connects to devices in just 3 seconds  
• Connect to two devices and switch between them
• 17.8g, Ear hook is made of flexible soft material making it comfortabl
• On-ear controls to adjust volume, in-line button to accept call
• Waterproof and sweatproof (IPX4)
• Up to 7 hours of play time
• Metal composite diaphragm
• Built-in MEMS microphone

Friendly Tips 1: it's wireless headset, please don't expect sound quality as same price wired headset.
Friendly Tips 2: 2 pairs of earbuds for Sports, other 3 for Music.  
Friendly Tips 3: to pair your device, press the power button and hold it down until the LED light comes on and starts blinking white fast. That means it's in pairing mode and ready to be connected to your devices.