Enjoy exceptionally rich, expansive sound in a comfortable, sized-to-fit earphones. Technics EAH-AZ40 True Wireless Earbuds allow you to hear music—and life—in full color. Whether you are at home, at work, working out, or traveling, connect seamlessly and clearly to your computer, tablet, or phone with easy Multi-Point Connectivity and control your sound experience via the Technics Audio Connect app. Enjoy impressive call quality on your phone and video calls; JustMyVoice technology amplifies words and reduces surrounding noise. Four discrete earpiece sizes ensure the perfect fit for maximum comfort and sound quality. Built for comfort and IPX4 water resistance, EAH-AZ40 ensures durability even in the sweatiest runs or unexpected drizzles. It has a battery life of up to 7.5 hours, with a total charge up to 25 hours from the compact charging case; touch sensor controls; voice assistant technology (Siri, Alexa); a left-right independent signaling system; and a “find my buds” function.