Fanvil i10D is an ultra-compact IP intercom for excellent communications at doorways. Designed for indoor installation, i10D fits in the hand: it's less than 3.5" square. i10D works in many common scenarios like offices, hotels, apartments, schools, wellness centers, and many more. It has two programmable buttons for quick dialling an extension and unlocking the door. The built-in 1W speaker and microphone provide two-way, HD wideband audio to improve comprehension compared with older styles of intercom. Acoustic echo cancellation further clarifies the sound.