Featuring specially designed 0.35-inch drivers, the ATH-CKS50TW earbuds from Audio-Technica deliver clear, full-range audio with deep, powerful bass. They provide best-in-class battery life, with up to 20 hours of continuous use on a full charge. There’s also a fast-charge option that gives you roughly 90 minutes of use from a quick, 10-minute charge. The multifunction buttons on each earbud let you easily control music playback, volume and calls, plus select noise-cancelling and hear-through functions block out and permit ambient noise, respectively. These wireless earphones work with an array of today’s most advanced codecs, including Qualcomm aptX Adaptive audio, Qualcomm aptX audio and AAC, ensuring the best sound and performance for a variety of uses. Codecs are selectable through the Audio-Technica Connect app, which also gives you the power to activate the low latency mode, adjust EQ, change L/R volume balance, locate misplaced headphones and more. The earbuds automatically turn on when taken from the charging case and may be used together or as a single earpiece in the left or right ear. The hybrid eartip structure, fashioned from soft silicone for the eartip and hard silicone for the sound-delivering shaft, provides a secure, comfortable fit with superior sound performance. Other sound-enhancement features include Qualcomm cVc Generation 8.0 for excellent call quality, sidetone circuitry to let you hear your voice in the headphones for more natural call conversations and compatibility with Sony’s immersive 360 Reality Audio.