Neckband Bluetooth Headphones Stereo Earbuds, Black

【18-Hour Playtime】: A single charge delivers days of listening. Only 2.5 hours charging time ,you can use the earphones up to 18 hours, the battery status will display on your smartphones, no need to worry about the dead battery during outdoor or indoor activities. 【Ergonomic Neckband & Retractable Earbuds】:Weight only 1.5 oz ultra light and flexible ergonomic neckband, you can wear the headphones on your neck comfortably. 【Call Vibration & CVC 8.0 Noise-Cancelling Mic】:The bluetooth headphones will vibrate when a call comes in so that you won't miss any calls.The built-in CVC8.0 noise-cancelling microphone can reduce background noises so as to provide crystal-clear sound for hands-free calls. 【High-fidelity Sound Quality】:10 mm drivers 20% larger than ordinary earphones) is used to deliver beautiful music to your ears with soft bass and clear treble. The immersive sound will make you feel like you are at a concert.