NEWEST Syllable G15 Professional Wireless Bluetooth Noise Reduction Cancellation Headphones Headset for iPhone 4 4S 5 5C 5s / Samsung Galaxy S4 S5 Note3 Smartphone This is a fashion, comfortable and durable design noise cancellation Bluetooth headphone with built-in rechargeable lithium battery. It is for both wireless and wired use. Syllable headphones with built in Bluetooth + Noise Cancellation functions, allow you to freely enjoy music and receive calls wirelessly, and enjoy high-definition stereo sound quality. You can listen to music, answer the phone, hang up the phone, and make calls and so on. This headphone can inter-charge between Bluetooth and cords control functions automatically.