TRUE WIRELESS EARBUDS FOR SUPERIOR SOUND - With sound master tuning, the Denon AH-C630W Bluetooth Earphones deliver dynamic audio and crystal clear vocals coupled with wireless freedom while you listen to music, make calls, watch movies, or workout EFFORTLESS CONNECTIVITY - The wireless earbuds with case seamlessly connect to up to 8 Bluetooth devices. Opening the charging case automatically enables the earbuds to enter pairing mode, ready to connect with smartphones, tablets, or other devices WATER & SWEAT RESISTANT - Designed to keep up with your active lifestyle, these IPX4-rated wireless Bluetooth earbuds withstand sweat and water. With reliable performance and crisp audio quality, they are the perfect daily commute or workout earbuds ENHANCED COMMUNICATION - Equipped with a built-in mic, these Bluetooth earbuds ensure clear voice transmission over audio or video calls. Take business or personal calls without the interference of tangled cables with these wireless sport earbuds EXTENDED BATTERY LIFE – Enjoy up to 4.5 hr of continuous wireless music playback on a single charge. The sports earbuds’ innovative charging case extends listening time to a total of 18 hr. Charge using the included USB-C cable & any USB charger PERFECT FIT AND COMFORT - These in-ear Bluetooth headphones have undergone extensive ear canal simulations to find the perfect ergonomic shape. Choose from 3 silicone ear tip sizes for a secure, personalized fit, ensuring comfort during long sessions