FACT SHEET The working tool for all day performance The SC 230/260 ATC/C3 AG series of robust headsets is designed to meet the daily challenges faced by Air Traffic Controllers and C3 operators. Hearing and being heard clearly is fundamental for safety and confidence in ATC/C3 environments and the series delivers on both counts, thanks to Sennheiser’s legendary audio expertise. A unique ear cup shape and a built-to-last design make the headsets both comfortable enough for long hours of wearing and tough enough to withstand years of daily use. A fully adjustable metal headband with numbered grooves and soft leatherette ear cups make finding and keeping the perfect fit simplicity itself. And with name tag personalization, it’s always possible to identify your own headset. Sennheiser ActiveGard® technology protects users’ hearing against acoustic injury caused by a sudden sound burst on the line, with no risk of communication drop-out. FEATURES & BENEFiTS - Sennheiser Voice Clarity for accurate communication, provides a natural listening experience - Perfect speech transmission Noise-cancelling microphone filters out ambient noise for optimum speech clarity to reduce “call-back/read-back” events - Sound protection from acoustic injury caused by sudden sound bursts on the line with Sennheiser ActiveGard® technology - Two channel application for air and land based communication on SC 260 ATC/C3 AG - Perfect fit CircleFlex® dual-hinge ear cup system adapts seamlessly to the ear for all-day wearing comfort - Built for durability with unique robust construction and metal reinforced headband - Name tag personalization - easy user ID helps avoid wearing colleagues’ headset

FACT SHEET SC 230 / 260 ATC Headsets Technical Data Product SC 230 ATC/C3 AG SC 230 ATC/C3 SC 260 ATC/C3 AG SC 260 ATC/C3 Wearing style SC 230: Headband with side-support. SC 260: Headband. Headphones Sound pressure level: dB SPL @ 1 KHz, 0.5 V 103* 103 103** 103 THD, total harmonic distortion <1 % at 102 dB SPL at 1 kHz Frequency response 50 - 18,000 Hz * Limited by ActiveGard® ** ActiveGard® limit 113 db Mircophone Microphone type Electret, noise-cancelling Sensitivity -38 dbV/Pa (12.6 mV/Pa) @ 1 KHz, +/- 3 db General Data Contact pressure 1.9 N Connector unterminated, pre-tinned Weight of...

FACT SHEET SC 230 / 260 ATC Headsets Technical Data Connection color coding*: Product Shield Red Black Green White SC 230 ATC/C3 AG No connection Mic + Spkr + Spkr GND MIC GND *: L = mic boom arm side. R = opposite mic boom arm side *'Only use accessories supplied or recommended by Sennheiser Packaging Dimension of product 153 x 200 x 59 mm / 6.03 x 7.88 x 2.32 in packaging (W x H x D) Package weight (incl. complete SC 230: 177 g / 6.24 oz, SC 260: 205 g/7.23 oz product and packaging) units in distributor master carton 20 Master carton weight SC 230 4.5 kg / 9.92 lbs, SC 260 5.2 kg / 11.46 lbs...