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Open-Ear Design: Use the Air conduction technology to create high-quality and lightweight earphones, keeping you connected and aware of your surroundings. All day wearing without hurting ears or damage to hearing. ^^ 2. Up to 38 Hours PlaytimeEnjoy 38 hours continuous of music and calls with our Air Conduction Earphones. ^^ 3.
Outstanding Sound Quality: With upgrade speakers, this Air conduction Headphones will provide you with clearer music and more dynamic rhythms. ^^ 4.
Lightweight & Comfortable: The open ear Bluetoth headphones are made of Ultra-lightweight Memory titantium alloy steel wire frame with resilient and durable. What's more, it only weighs 23 grams, so it's convenient to wear all day without feeling heavy. ^^ 5.
Size: M 3.93X 5.5 in Medium size, It's not suitable if the head is too big.