Just plug this Motorola audio adapter into the audio jack of your compatible mobile phone to convert the audio for use with any wired, standard, non-amplified, univeral 2.5 mm jack, 2 ring, 3 connector, audio device. This adapter coverts the EMU (Enhanced Mini USB) into a standard (universal) 2.5mm jack. The Audio Adapter operates in Mono audio for a single earpiece speaker. This adapter is not compatible with wired headsets using a Microphone Volume adjustment, or a Microphone Mute feature. However, headsets that have the Earpiece Volume adjustment, but no Microphone Volume adjustment will work.
No need to search for special earpieces for your Motorola Phones any longer, simply plug this device in and use any standard 2.5mm earpiece.