1. Redefining the MILC with 20 million pixels + 4k video. Standing on the shoulder of giants, YI-M1 MILC is equipped with the newest Sony M4/3 system IMX269 AQR sensor giving it an expressive 20-million-pixels resolution. Color and tone transition will be vividly depicted, bringing you an ultimate high quality visual experience. 2. BLE Bluetooth real time connection.