Plantronics BLUETOOTH Voyager 4210 UC Wireless Single-Ear Headset. Either Ear!!

Poly (PLANTRONICS) Straight -wired OR YOU CAN BLUE TOOTH. TURN ON AND HOLD ON/OFF BUTTON 3 SECONDS TO PUT INTO "PAIR" MODE. BLUE TOOTH, pair, and click on POLYV210 SERIES TO PAIR VOYAGER 4210 UC with your cellphone. COMES WITH USB CHARGING BLOCK, REGULAR USB, BLACK CARRY BAG, CONVERTER TO "C" USB. ONE EAR COVERAGE TO BE ABLE TO TALK, AND HEAR OUT OF ONE EAR. FREEDOM TO WALK AROUND HOUSE VIA BLUETOOTH. OR, CONNECT TO COMPUTER FOR CUSTOMER, OR CONFERENCE CALLS. TESTED. EVERYTHING WORKS!!! JUST DON'T NEED. I ABSOLUTELY LOVE PLANTRONICS (POLY) PRODUCTS!!!! Boom microphone rotates to work with either ear. Left or Right.