Connecting the two earpieces is a sturdy rubberized band, which can stretch out to accommodate most head sizes. The entire device is pretty light (about 2 ounces), so we could wear it for long periods of time, which is perfect for daily commuting. Connect to a compatible Bluetooth-enabled music phone or MP3 player, or use the Motorola D650 to pair with most iPod players. Never miss a call, music mutes or pauses when a call comes in and resumes when the call is over. Connect to a compatible Bluetooth-enabled music phone or MP3 player, or use the Motorola D650 (sold separately) to pair with most iPod7reg; players. Never miss a call, music mutes or pauses when a call comes in and resumes when the call is over.