The Xcel 500BT combines sophisticated sound processing, intuitive menu navigation, and rich electronic control features with an intelligent, forward-thinking approach to design and ergonomics that delivers a hearing protection and enhancement system without precedent in the shooting sports and hunting industries. The XCEL 500BT's next-generation Sound-Activated Compression and variable Dynamic Sound Suppression automatically adjusts compression time according to noise level intensity and duration instead of using conventional "fixed-time" compression. Additionally, the XCEL 500BT allows the wearer to select between four different listening modes: Universal, Speech Clarity, High Frequency, and Power Boost. The XCEL 500BT also comes with programmable auto shut-off, so forgetting to turn the muffs off and accidentally running down batteries is a thing of the past. Bluetooth compatibility is another valuable feature. By pairing the XCEL 500BT to a mobile device, calls and notifications connect through the muffs. Messages and conversations can be heard clearly even in noisy environments.