Outdoor Sports Braven's Flye Sport Burst earphones pair with your phone via Bluetooth. They are lightweight and last over 10 hours on a full battery. The earphones have BurstCharge. This ensures that your earbuds can last another hour after 5 minutes of charging. Because the earbuds are waterproof, they can withstand sweat and Tested in the Rocky Mountains Braven's products are specially designed for active and adventurous people. To ensure that the products meet all requirements, they are tested in harsh conditions. The laboratory for testing is the outside world and especially the Rocky Mountains. Here, the products are rolled off rocks and put in ice water to ensure that the products can withstand everything that can be encountered in outdoor life. Specifications Warranty 2 Year Warranty Dimensions 2.76" x 1.97" x 1.18" Weight 0.309000 lb Microphone Support Yes Volume Control Yes Audio Type Water-Resistant Earbuds Connection Type  Bluetooth<br> <br>