Syllable G15 Bluetooth Noise Reduction Headphones For iPhone Cellphone. This is noise canceling Bluetooth headphones with builtin rechargeable lithium battery. It is for both wireless and wired use. With the help of either Bluetooth or cords with microphone, you can listen to music, answer the phone, hang up the phone, make calls and so on. This headphone can interchange between Bluetooth and cords control functions automatically. Bluetooth mode won't work under cords control mode. And buy this Syllable G15 Bluetooth Noise Reduction Headphones For iPhone Cellphone Now $59.99.