Pioneer story Mini Earhook Stereo Bluetooth Headphones with Noise Reduction - Black 1. Bluetooth headset with lightweight and compact portable design.Simple and Stylish. 2. Built in HD and Sensitivity microphone. Idea for in car calling or working use. 3. Up to 4 hours of continuous talk time, 3.5 hours of music time.120h long standby.Only need to charging 1-2 hours. 4. Can connected with two smartphone at the same time, the wireless range up to 10 meters. 5. Long press the power button for about 4s until the red and blue lights flashing alternately, enter the Bluetooth pairing state