Energizer Max D Batteries, Premium Alkaline D Cell Batteries (8 Battery Count)

CLEAR AUDIO QUALITY: Take conversations on the go or on the road with confidence as your headset’s sophisticated noise-canceling microphones optimize your voice and minimize noise caused by wind, movement, and other background sounds.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears.Audio Sensitivity:80 decibels.Compatible phone models:iPhone X CONNECTIVITY & MOBILITY: Connect your mobile device or tablet through Bluetooth and move freely with up to a 33 ft (10 m) range and up to 7 hours of talk time; and with multipoint technology, you’ll enjoy the convenience of having two phones connected at once. HANDS-FREE: Optimize every call as intelligent sensors pause music and direct calls to your phone or headset; with intuitive voice commands, you don’t even need to lift a finger—simply use your voice to answer or ignore calls, check battery level, & more.