The HF2 is a high-fidelity, hands-free noise-isolating headset and earphones combination. But it's really much, much more than that. The HF2 provides a near-perfect music experience. Made by Etymotic Research, the people who created in-ear earphones, the HF2 delivers Etymotic's world-renowned sound quality in a comfortable, convenient wireless phone headset, so you'll never miss a call!