E.BOAT&reg; Scream QY7 Sports Earphone, Lightweight Wireless Sweatproof In-ear Style Bluetooth Earphones Earbuds Headphones Headset for Sports, Running, Gym, Exercise and More! Bluetooth 4.0 with aptX codec, earbuds seal with unique Cavity Structure Design, 20% effective area increased in vibrating diaphragm,all of these helping you enjoy a pleasant music journey . As a sweatproof sports earphone, QY7 will always stay in your ears steadly whatever you do. No matter how much sweat or rain there will be, E.BOAT QY7 will be twice stronger than the sweat and water, QY7 is always your reliable music life supporter. Signal Enhance Technology: Using E.BOAT on your body without traditional limitations. Even put them in bag at the gym and workout at a good distance without signal droppage. Comfortable and stable design for all levels of exercise make easy accessible on-ear controls when you keep moving and eliminates troublesome wires tangling while you control your music or calls. Compatible with most Bluetooth-enabled cell phones; reduces noise, wind and echo