The Sandberg 2in1 Office Headset Jack+USB is a clever all-round connection headset. It features both MiniJack and USB connection, meaning that you can connect it to either your computer’s USB port or to the MiniJack audio connector in your smartphone or tablet. The clear sound reproduction of this headset makes it perfect for online meetings. Adjustable microphone arm and headband so it can easily be adapted to your needs. Features and Benefits 5 years warranty. Double Quality Control Impressive sound quality. Optimized wearing comfort. MiniJack audio connection. USB connection to power LED light. Specification Length of Guarantte: 60 months.