Advanced 24.2MP Full frame Image Sensor w/ 1.8X readout speed Advanced 24.2MP Back Illuminated 35mm Full frame Image Sensor. Bluetooth Yes (Bluetooth Standard Ver. 4.1 (2.4 GHz band)). Compatible with Sony E mount lenses. External Flash Compatibility Sony α System Flash compatible with Multi Interface Shoe, attach the shoe adapter for flash compatible with Auto lock accessory shoe.