The Bose FreeSpace DS 100SE is a high-quality surface-mounted speaker designed for professional applications such as background and foreground music and voice broadcast. This powerful speaker is suitable for both indoor and outdoor use (IP55). Below are the most important technical specifications and characteristics: Core Specifications Power: 100 Watt RMS (400 Watt Peak) Drivers: 1x 5.25 inch woofer (for the low tones) and 2x 2.25 inch Twiddler drivers in an Articulated Array Frequency range: 75 Hz to 18,000 Hz (+/- 3 dB) Sound pressure (Max SPL): 105 dB SPL continuous (111 dB SPL peak at 1 meter) Beam angle: Very wide horizontal coverage of 180° H x 75° V Weight & Dimensions: Approximately 6 kg, with dimensions 178 x 381 x 216 mm Pictures are all original of this lot and part of description so what you see is what you get !