Due to the nature of my job, I frequently receive phone calls while driving, so a single-ear earphone is essential, and I kept this as a spare. I am selling it now as I no longer need it. I opened the package to check for power and functionality. I've used various earphones, but the EXPLORER 500 is the best for single-ear calls! - Model Name: EXPLORER 500 - Brand: Plantronics - Accessories: Manual, charging cable, ear hook - Condition: Unused (opened)