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 light-weight 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.