JAM Transit Micro Sport Buds Mini Wireless Bluetooth Earbuds, 10 Hour Playtime, Perfect for Running, Gym, Workout, Hands Free Calling Controls with Mic, Waterproof, Reflective Cord, HX-EP510BL Blue BLUETOOTH: Connect wirelessly with any Bluetooth device in a 30-foot range RECHARGEABLE: Charge for 1 hour to provide up to 10 hours of play time SPEAKERPHONE: Answer calls directly from your Transit Micro Sport Buds. Mute the left earbud so you can hear your surroundings REFLECTIVE CORD: Provides extra safety for nighttime use MULTIPLE ACCESSORIES: Includes carrying pouch, water bottle, and cord management system. Choose from multiple sizes for a custom, secure fit