:These open-ear wireless Bluetooth headphones feature an innovative quad-speaker design (dual drivers per earbud), equipped with 15mm large-diaphragm dynamic drivers and a dedicated headphone amplifier chip. The primary drivers are precisely aligned with your ear canal to deliver live-concert-quality audio with stunning immersion. : The OHAYO T10 open ear headphones weigh only 8 grams per earbudlighter than a standard keyfor a weightless feel. The open-ear design enhances safety by keeping you aware of your surroundings and reduces ear canal friction, cutting skin irritation by % compared to in-ear models. Perfect for 10+ hours of continuous use without discomfort. - : These Bluetooth 5.4 open ear earbuds offer of playtime, plus from the charging casetotaling 40 hours. Thats or on one charge, perfect for long trips without frequent recharging. 6