Bluetooth Sport Earbuds, powerful earbuds with built-in multiple functions, born to provide you with a perfect music experience. It adopts CSR8645 Bluetooth V4.1 chip to achieve apt-x losses audio decoding, thus delivering CD class tone quality. Equipped with CVC6.0 noise canceling technology, it can isolate from ambient noise granting clear calls and full music enjoyment. Based on IPX4 waterproof sweatproof function, it is suitable to be a cool and practical pair of sport earbuds. CVC6.0 intelligent noise reduction: Delivers the clear and detailed sound. IPX4 waterproof and sweatproof: Best choice when you do sports. CSR4.1 APT-X audio decode technology: Offers you perfect sound. Multi-point connection: Support connect with two devices simultaneously. English voice command: For picking up / rejecting calls. Built-in mic: Allow you answer the phone with hands free. On-cord control: Control music and calls from the headphone. Ergonomic earbud: Comfortable to wear. Lightweight and portable: Easy to store in your bag. Finish: Phantom Rose Gold.