Wireless Bluetooth Sports Earphones Neckband Headset In-ear Headphones Earbuds Earpieces for Sports Running Gym Exercise (Black) Type: Bluetooth Stereo Headset App-Enabled: Yes Noise Reduction: Yes Ear Coupling: In the Ear Talk Time: Up to 3.50 hour(s) Music Time: Up to 4.50 hour(s) Charge Time: 2 Hours Bluetooth Version: 4.0