Bluetooth Headphones, Sokos Wireless Bluetooth Headset Noise Cancelling Earphones with Magnetic Attraction (Black) Magnetic Bluetooth Headphones: MAGNETIC ADSORPTION design, the earplug can be magnetically attached to each other back-to-back, forming a loop around your neck. It is so convenience for sport. Two Bluetooth Connection: connect with 2 cell phones or tablets at the same time. You will not miss any important calls. Phone above the status bar displays the electricity consumption of Bluetooth for iPhone users. Noise Cancellation Technology: Wires Bluetooth Headset CVC noise cancellation technology reduces outside noises, enable clearer microphone sound, you will not heard outside noise, so nice headphone. Comfortable Headphone: Sweat proof and lightweight design can guarantee you feel stable and comfortable when jogging, hiking, riding, working and so on. Bluetooth 4.1 headsets : Offering you perfect stereo sound. Playing music time: up to 4 hours. Talk time: 5 hours; Charging time: 1.5 hours.