One Touch Call Control Answer or end calls instantly with a single press. No need to fumble with your smartphone during conversations, making every call quick and effortless. Adjustable Volume for Sound Easily finetune audio using your smartphone's volume slider. Create the listening level whether you are at home, in the office, or on the go. Universal Smartphone Compatibility Works with multiple smartphone brands, including models with a standard 3.5mm headphone jack. Ideal for Apple devices and others that support wired audio connections. Reduced Radiation for Safer Calling Retrostyle handset design keeps your phone away from your head while in use, helping to reduce exposure to cellphone radiation. Enjoy clear and comfortable calls with dependable performance. Practical Use Scenarios At your desk: Keep your smartphone nearby but continue working hands while managing calls with ease. At home: Make long conversations more comfortable using the ergonomic handset design. On the go: Connect directly to your device wherever you are for reliable and private calling. Specifications Function: Onetouch answer and end, adjustable volume through connected smartphone Compatibility: Works with devices featuring a 3.5mm audio jack, including Apple and other smartphone brands Size: Compact handset design for comfortable holding and storage Material: Durable construction for everyday use Performance: Clear audio transmission with reduced interference and improved comfort during extended calls