Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Huge, clunky, uncomfortable and does not pair

If this unit looks big in the photo, brace yourself: it's like a bad science fiction rocket ship when it arrives. It is made of hard plastic with odd fins and protrusions everywhere. It does not rest easily on the head. It feels heavy and abrasive. I am surprised that none of these manufacturers have come up with a softer, lighter material, or spent any time considering how to fit a headset to the ears and head. Sony does a better job with its DRBT21G/B, but also falls victim to hard plastic and a hinge in the middle of the set that digs at your skull as time goes on. Truly astonishing.I could not get the unit to pair with my top-of-the-line Sony bluetooth transmitter. Motorola was "kind" enough to issue a stern warning about returning this item without calling their toll-free number. What a waste of time. They either don't answer the hone, or leave you hanging for long periods of time on hold.