iDeaUSA Bluetooth Headphones Apt-x, Wireless Headphones, Sport Headphones, Earbuds with Mic, Noise Cancelling Headphones, Sweatproof, Up to 6 Hours Play time with Carrying Case Hi-Fi STEREO SOUND: Adopted the CSR Bluetooth Stereo Chips which is the newest technology, strengthen the signal 2 times. The apt-x code provides stereo and high-fidelity sound. Enjoy music in your world. SWEAT RESISTANT: Professional Sports Headphones, sweatproof for reliability. No worry about the battery damage by heavy sweat. Stay comfortable in place during vigorous exercise. Notice: Although it is sweatproof , pls do not dip it into the water. CONVENIENT CONTROL: Pair in a few seconds with your iPhone ios and android Smartphone, tablet or music player. 3 buttons lets you switch between calls and music with one touch ease, and control the music as well. No need to touch your device--a necessity when you are running outdoors. 2-LINK DESIGN: Integrated 2-link technology, you can connect two devices at once. That means that you can seamlessly switch phones between business and personal. LONG STANDBY: The rechargeable lithium-ion battery provides up to 5 hours of listing, durable enough to stand up to on-the-go use. and a USB charging cable is included. Almost 10m/33ft transmission distance, you can put your bluetooth device away and enjoy music.