Upgrade your audio system with the Razer Hammerhead BT Earbuds. A total upgrade on the original set, these earbuds use the latest technology for total immersion. Inside the earbuds are custom-tuned 10mm drivers. Connecting via Bluetooth, you get a 33-foot range from your iOS or Android device. With this, you can move and groove, work, or workout without worry. In addition, the Hammerhead BT set remains connected with a behind-the-neck cable. This also features an in-line remote and microphone so you can control your tunes and take calls on the go. Designed to go wherever life takes you, the Hammerhead BT headset has an 8-hour battery life. Coming in a sleek green and black design, the Hammerhead BT set integrate seamlessly into your lifestyle.