Retro Style Mobile Phone Handset with 3.5mm Plug Simple OneTouch Operation: Answer calls instantly with a single press of the builtin button. No need to fumble with your phone screen when a call comes in. Adjustable Volume Control: Easily slide to increase or decrease the listening volume for clearer, more comfortable conversations. Sound Compatibility Switch: Designed with a sound switch to optimize performance across different smartphone brands and models. Universal 3.5mm Plug: Equipped with a standard 3.5mm audio connector for wide compatibility with most smartphones on the market. This handset combines classic design with modern functionality, making it ideal for those who prefer the comfort of a traditional phone receiver while using mobile devices. The ergonomic shape helps reduce strain during long calls, and the direct audio connection minimizes background noise for clearer communication. Practical in multiple situations: At home or in the office for comfortable, extended phone conversations without holding your smartphone to your ear. While working at a desk to reduce radiation exposure from prolonged mobile use. In noisy environments where the receiver's shape and fit help improve call clarity. Built for reliability and ease of use, this handset offers a familiar feel, solid performance, and broad compatibility, making it a versatile accessory for everyday phone calls.