iRainy Bluetooth Headphones W Microphone Noise Cancellation for Running, Sports, Exercise Wireless Earbuds Headset for Apple Android Smart Phones Tablets Bluetooth-Enabled Devices With CSR4.1 APT-X audio decode technology, connect to 2 cell phones or tablets simultaneously, will never miss a phone when enjoying music; Never fall off when workouts. Ergonomic in-ear design with medical grade silicone ear gels and stabilizers, providing you the most comfortable wearing ear buds full day; CVC6.0 intelligent noise reduction, Sweatproof design, best choice when you do sports; Built-in 80mAh battery, increasing your using time, Control music and calls from the headphone, Allow you answer the phone anytime and anywhere; Suitable for all Bluetooth enabled devices, Calls hands-free, drive travel more at ease.