Headset -Wireless Bluetooth Bone Conduction Earphones Highlights Generic Wireless Bluetooth Bone Conduction Earphones Beautiful appearance and original design. 3D measurement of human ear size, suitable for ergonomic sound guide structure. Skin-friendly rubber material for a more comfortable fit. Neck strap, light weight, comfortable to use and easy to carry. Suitable for indoor and outdoor use. Specification: Material: Plastic Size: 139x104mm/5.47x4.09inch Package includes: 1 piece Bluetooth headset (2-pack) 1 piece Charging cable (2-pack) 1 piece User manual (2-pack) Note: The color may be slightly different due to the color calibration of each individual monitor. Please allow slight measurement deviation due to manual measurement.