MultiFunctional Wired Mobile Phone Handset OneKey Call Control: Answer or end calls instantly with a single button press, providing quick, reliable call handling without needing to touch your phone's screen. Adjustable Volume: Builtin volume slider lets you set the listening level to match your environment, whether you are in a quiet office or a noisy public space. Universal 3.5mm Plug: Compatible with a wide range of smartphone brands and models equipped with a 3.5mm audio jack, ensuring simple plugandplay operation without additional software or pairing. Extended Reach with 9ft Coiled Cord: Flexible coiled cable allows comfortable movement during calls while keeping your desk or workspace organized. Use Scenarios: 1. Office Work: Maintain clear, professional voice communication while multitasking at your desk. 2. Home Use: Enjoy comfortable, handson phone conversations without holding your smartphone directly, reducing hand strain. 3. Customer Service: Ideal for front desk or call center environments where reliable call handling and volume control are essential. Durable, practical, and easy to operate, this wired handset delivers dependable performance for everyday communication needs. Its ergonomic design, universal compatibility, and quality construction make it a valuable tool for both professional and use.