Pro Ears Stealth 28 comes with proprietary temple hugging design for a secure, comfortable fit with amplification up to 5X, and sound compression. Wind cover over the microphone to reduce annoying sound with a USB rechargeable plug with up to 12 hours of operation per charge under normal conditions. Super lightweight at 20 grams easy to wear all day even in the hottest climates. Improved protection when wearing hats, accommodates long hair or beards will not interfere with the fit.