EC Technology Sweat-proof Premium Bluetooth 4.0 Technology Portable Sport Headphones, with Apt-X CSR 8635 Bluetooth Technology, Hybrid Silicone Earbuds& CVC Noise Cancellation, Special for Sports Premium Bluetooth 4.0 Technology: Update EC Technology Bluetooth sport headphones, with Apt-X CSR 8635 Bluetooth technology, easy and fast pairing with smartphones, tablets and other Bluetooth enabled music devices. Ergonomical Earplugs: Hybrid silicone earbuds and adjustable ear caps are based on the standard of human engineering. Inside-the-ear hook design ensures headphone stays put while jogging. Short and simple, no more troublesome wires! Perfect CVC Noise Cancellation: Earbuds help to eliminate in-ear white noise and reduce listener fatigue. Two powerful audio drivers on each side offering balanced audio and crystal clear sounds, providing a comfortable and dynamic listening experience. Tuned for Sports: This elegent black headset is specially designed for sports, portable and lightweight, offering you a cool and sweat-proof protection when you're doing,running,cycling and even playing basketball. Package Contents: 1 x Bluetooth Headphone; 1 x Micro Cable; 3x Ear Caps; 4 x Ear Hooks; 1x Instruction Manual.