Performance advantages: 1. Using the latest 4.1 + EDR Bluetooth technology, superior signal transmission, ultra-low energy consumption, support for all Bluetooth devices, support automatic answering f more→unction. Hands-free call, one key to start/end the call, 5 seconds to answer automatically, no need to answer manually when talking, safe driving, large button design, is the best choice for male riders. 3. Built-in high-quality interference-fr
