Hi-Fi Stereo Sound: Built-in CSR Bluetooth chipset and HD Microphone with CVC6.0 noise cancellationensure Hi-Fi Stereo Music Sound and Strong Signal. Let you get high quality and clear voice even in noisy environment such as inside a gymrunningdriving etc.</br>Main Specs:8~10 Hours Listening / Talking Time200 Hours standby timeabout 2 hours charging time 10 meters range Smart LED indicator Ultra light sweatproof and anti-dropping perfect for sport.</br>Connect to 2 bluetooth Devicessupport two mobile phones in turn call and listen to music so you will not miss any phone and information  Smart Voice Answer: yes / answer no / reject providing great convenience for you.</br>Bluetooth EDR APT-X audio decode technology offering you stable signal and perfect stereo sound. Compatible with most iOS/Android Mobile Phones & Pc Laptop.The use of polymer lithium battery comes with protection board function to prevent the potential risk of overcharge and over discharge</br>Compatible with iPhone 6 6 Plus 5 5S 4 4S iPad iPod Samsung Galaxy S6 S5 S4 S3 LG Motorola Sony and iOS/Android Mobile Phones. Almost all smartphones can work with this earphone.</br></br>Product Description</br></br>The business Bluetooth headset is the perfect companion for smartphones?? with two different sizes of silicone earplugs?? deep sleep power saving mode and microphone?? using CVC6.0 noise reduction technology to ensure that the call in a noisy environment?? clear quality. Wear comfortable With a comfortable?? ergonomic design?? the 180 degree flip arm allows you to adjust the angle??