Key features Headphone transducer and connector plug deliver clear audio and function as a cell phone headset adapter. 2.5 mm audio adapter lets you use 3.5 mm earphones with phones that have a 2.5 mm jack. Temperature range 060 C; rated load 5 ( ), insulation resistance 10 mΩ. Advantages include reliable transmission and easy to use; 25 to 35 adapter mentioned. Headphone adapter plug provides stereo or mono capabilities to convert a 3.5 mm headset for use with different devices. Technical and compatibility details Function: Converts and adapts between 3.5 mm and 2.5 mm headset connections; supports stereo and mono configurations. Compatibility: Suitable for devices that require a 2.5 mm jack while using standard 3.5 mm headsets. Performance: Designed to provide clear audio transmission and straightforward operation. Use scenarios Scenario 1: You have a set of 3.5 mm earphones and a smartphone with a 2.5 mm jack; use this adapter to connect and listen with your existing headphones. Scenario 2: You need to switch a 3.5 mm headset to mono or stereo output on a device that uses a 2.5 mm input. Scenario 3: Travel or on the go, enabling crossdevice compatibility between 3.5 mm headsets and devices with 2.5 mm connectors.