Used only twice and cleaned with alcohol. In like-new condition. SMALL - Wear comfortable, hidden, suitable for a variety of scenes MULTIPOINT CONNECTION - At the same time connect 2 mobile phone ENERGY CONSERVATION - Generally speaking, the battery can keep 3.5 hours life for all this similar products, but our products has a high capacity battery which 1.5 times than others. Premium quality lithium accumulator allows you listening audio on 30-40% volume about 7 hours and 6-8 hour talking time, 4.5 hour on full volume. BLUETOOTH 4.1 & EDR TECHNOLOGY- Compatible with all Bluetooth-enabled devices. Instantly connected to your smartphone or tablet from up to 33 feet away. MAGNETIC INDUCTIVE CHARGING - Never Have to fiddle with cords, you put it to charge and pick it up when you are ready to go (Focuspower product is fully backed up by 45-day money back & 18-month worry-free guarantee )