Features1. Open-ear design: The new type of headphones using bone conduction technology is different from others, using the cheekbone to spread sound waves. Designed to be slim, lightweight, and comfortable for all-day, everyday wear.2. Durable and sweatproof: IPX5 rated waterproof, resistant to sweat, dust, and moisture, it is the perfect workout partner for sports, fitness, or running enthusiasts.3. Wireless: This headphone is designed with Bluetooth-compatible V5.2 technology, which provides you with stable and clear sound, you can easily enjoy excellent music.4. Noise reduction and low latency: The sound transmission does not go through the eardrum, which reduces damage to the eardrum. The open-ear headphones allow you to hear what's going on around you, safer for cycling, running, and driving than traditional noise-canceling devices.5. Comfortable to wear: You don't need to insert the headphones into the ear canal, even if you listen to music all day, your ears will not feel sore. An excellent choice for music lovers.SpecificationMaterial: Titanium alloyColor: Black, Red, Blue, GreenPackage size: 30 2 2 cmWeight: 15 gModel: BL09Bluetooth-compatible version: 5.2Battery capacity: 180 mAHUsage time: 15 hoursWaterproof: IPX5Transmission distance: about 10 mPackaging: BoxPackage includes:1 bone conduction headphone