Retractable Headset Handsfree Earphones Mic Metal Earbuds Headphones In-Ear Wired [3.5mm] [Black] compatible with ZTE Blade Vantage 2. Specifically designed for use with your Phone, the Metal Bullet Headset integrated voice functionality gives you the freedom of hands-free phone calls. Retractable cable is compact and can be stored on. It features durable metal bullet heads, a built-in microphone with power off/on button, and a shirt clip for comfort and ease of use. The Metal Bullet Headset use the same speaker technology and sound signature used in professional monitors. Their noise-isolating in ear design sits inside your ear canal to create a seal to the outside world that effectively isolates outside sound. So it's just you and your music in a world of your own. Excellent sound quality and super clear sound. Cord mounted ON/OFF button which lets you take calls and hang up easily. Comes in Bulk Packaging (Non-Retail Package).