Jabra EarWrap Headset With Boom Microphone for standard 2.5mm jack. This headset stands apart from the EarGel-based core Jabra products. Made of foam-coated plastic, the soft, bendable earhook keeps the unit securely attached to the user's ear. The noise-canceling boom microphone eliminates ambient noise and its unique acoustic director perfectly positions the speaker against your ear. You can also personlaize the EarWrap with snap-on boom covers and flex-forming ear wraps in sleek tones of silver, blue and yellow.