In The Box: dēzl™ 100 headset Storage hook USB cable Auxiliary cable Documentation ACTIVE NOISE CANCELLATION (ANC) Engineered for audio excellence in loud road noise environments, ANC technology in the ear cup and adjustable boom mic block out interference for crystal-clear reception and output. LONG-HAUL TALK POWER With up to 50 hours of battery life, dēzl headsets provide a generous amount of continuous talk time between charges. Your voice will likely give out before the battery does. DESIGNED FOR DRIVERS The wireless, ergonomic design is purpose-built for the long haul with durable, corrosion-resistant stainless steel construction. Plush memory foam-padded ear cushion with synthetic leather provides all-day comfort. HANDS-FREE CALLING Built-in BLUETOOTH® wireless technology lets you sync your headset with your compatible smartphone, so you can make and receive calls without taking your hands off the wheel. STOW AND GO This premium headset comes with a convenient storage hook, allowing you to hang up your headset when not in use. ADD A TRUCK NAVIGATOR Use this dēzl headset with a dēzl OTR navigation device (sold separately) so navigation prompts can seamlessly blend into the headset audio stream and voice commands may be heard through your headset to control the navigator while your hands remain on the wheel. Requires use of the dēzl app on your compatible smartphone.