The Polaroid PL108 shoe mount flash is a Fully Automatic, TTL digital flash with a Guide Number of 60-feet @ 35mm. This unit has a bounce flash head, red-eye reduction capabilities and a focus beam to assist in low light shooting conditions. With Auto Focus, TTL metering, automatic shutter speed settings, this flash allows photographer to spend less time with flash settings. It is powered by two AA batteries (not included). It also features a Tilt/Bounce head which provides Precise Light Control Auto Focus Assist Lamp TTL Metering Red eye reduction Focus beam assist for low-light shooting Power savings function - Auto Sleep Mode Full Auto Mode Setting Specs: Type Shoe Mount Flash With Tilt Head Guide No. 60" (20m) @ 35mm TTL Dedication Yes Bounce Head Yes Vertical bounce angle: 0°, 45°, 60°, 75°, 90° Swivel Head No Zoom Head No Off Camera Terminal No Recycle Time 0.3 - 10 sec Power Source 2 x AA batteries (not included) Dimensions (WxDxH) 2.6 x 2.1 x 3.9" (65 x 54 x 98mm) Weight 127 g If you"re tired of the uneven and often underpowered illumination produced by your camera"s built-in flash, yet don"t see the need to overspend for the flashes offered by your camera manufacturer, welcome to Studio Series lighting solutions from Polaroid.