OEM (Original Equipment Manufacturer) Motorola micro-USB to 2.5mm mono audio adapter. Part Number : SYN2112A Connects your phone to external speakers or headsets with a 2.5mm plug. One end of this adapter is a 2.5mm female jack while the other plugs into your phone. Compatible with the following Motorola models : A455, AURA, CLIQ, DROID A855, Evoke QA4, Karma QA1, MOTO Q9e, MOTO Q9h, MOTO U9, MOTO Z9, QA30, RAZR VE20, RAZR2 V8, RAZR2 V8 LUX, RAZR2 V9, RAZR2 V9m, RAZR2 V9x, ROKR E8, V750, V950, VU30, W766, ZN4, ZN5, i465, i9. This item is NOT compatible with ANY LG or SAMSUNG Phones! Will ONLY work with Motorola Micro-USB Phones!