Bone Conduction Headphones Wireless Bluetooth 5.0 Sweatproof Sport Earphone Slick and ergonomic open-ear design can keep you alert to your surroundings, it is the perfect workout companion for sports, fitness or running enthusiasts. Features: Ergonomic neckband open-ear headphones Bone conduction design allows you to hear what is going on around you, safer and unrestricted exercise Sound does not pass through the eardrum, which protects hearing and keeps clean High-fidelity sound, superb bass, HD call with microphone Volume control button, answer, pause, and play button Bluetooth 5.0 chip, lower power consumption and more stability. 90mAh battery for long service time Widely compatible with various iOS and Android Bluetooth devices Durable and IPX5 water-resistant, dust-proof and sweat-proof Lightweight and comfortable to wear, not cause ear swelling, and will not fall off Specifications: Material: ABS Size: Length: 21cm Bluetooth compatible version: 5.0 Battery Type: Polymer Lithium Battery Battery capacity: 90mah Transmission distance: 10M Standby time: 7-8 hours Working time: 3-4 hours Water-resistant Grade: IPX5 Package Contents: 2 x Wireless Bone Conductive Headphone 2 x Manual 2 x USB Cable