Feature:1. [Air Conduction Technology]: The wireless bluetooth headphones adopts air conduction technology, provides hearing protection, avoid ear canal pain, and stay aware of your surroundings while exercising.2. [Open Ear Design]: The air conduction headphones creates ambience of the surrounding environment, maintains awareness of safety and increases the sense of fun and free when exercising outdoors.3. [Bluetooth 5.0 Technology]: The open ear air conduction headphone adopts bluetooth 5.0 technology, wireless connection, HD voice quality, stable transmission, longer distance range.4. [5.3 Hours Playing Time]: The sports air conduction headphone can last up to 5.3 hours on a single charge, and the battery life is strong, allowing you to enjoy music and sports.5. [Neck Hanging Design]: The Bluetooth air conduction headphones is lightweight and comfortable, close to the neck curve, not easy to fall, suitable for various sports scenarios.Specification:Item Type: Bluetooth Air Conduction HeadphonesMaterial: PlasticColor: BlackSize: Approx. 12 x 11 x 4cm / 4.7 x 4.3 x 1.6inBattery Specification: Lithium Battery (shipped with built in battery)Battery Type: QC11Battery Capacity: 180mAh.Package List:1 x USB Charging Cable1 x User Manual1 x Bluetooth Air Conduction Headphones