Kyocera Sapphire Shield. Life is hard. This is harder. Brigadier's touchscreen is built for drops and tumbles with Kyocera's proprietary Sapphire Shield display. Second only to diamonds in mineral hardness, Sapphire Shield is virtually scratchproof and provides outstanding protection against impact damage. It stands tough against everything from keys in a pocket to a face plant on a boulder, so worrying about a damaged screen won't be part of your day. Waterproof. Dustproof. Lifeproof. Brigadier is waterproof and dustproof. So snap the perfect beach pic, go jogging in the rain or take a hike on a dusty trail just because you can. We Hold Brigadier to a Higher Standard: Military. It's ultra-durable with Military Standard 810G protection against dust, shock, vibration, temperature extremes, blowing rain, low pressure, solar radiation, salt fog, humidity, blowing rain and water immersion, making it an ideal sidekick for just about any adventure. Push to Talk Plus. Push to Productivity. With Brigadier's Push to Talk Plus, you can communicate instantly with up to 250 people with the push of the dedicated PTT+ key. Participants can conveniently join or rejoin a call, even after the meeting has already started or if they accidentally drop. Push-to-Talk Plus works over nationwide 3G, 4G LTE and Wi-Fi networks - and 4G LTE group functionality allows you to assign a "supervisor" role to keep group calls productive. Worksites, Loud Sporting Events and Busy Streets are now Phone-Friendly. Smart Sonic Receiver - take audio performance to the next level in noisy environments by simply pressing the phone anywhere near your ear. Smart Sonic Receiver turns sounds into vibrations that go directly to the eardrum - bypassing background noise and enabling call clarity. The Brigadier also has loud, dual-front speakers, activated by a dedicated Speaker Key located on the top of the phone. Peak volume is 100dB, or as loud as a jackhammer from 6.5 feet away. It's a Screen Other Phones Simply Can't Touch. Whether you're putting in a hard day's work or just trying to stay warm, Brigadier is the smartphone that doesn't mind your gloves or the rain. Glove & Wet Touchscreen Operation come standard and are always on.