Mini Bluetooth 4.1 Sport Music Player Handsfree Calling Earphone Stereo in Ear Headset for Smartphone Type: Bluetooth Stereo Headset App-Enabled: Yes Noise Reduction: Yes Ear Coupling: In the Ear Talk Time: Up to 4 hour(s) Music Time: Up to 4 hour(s) Standby Time: 180 hours Charge Time: