hanging neck bluetooth sports metal ear shell super good sound quality wireless headphones blutooth earphone

hanging neck bluetooth sports earphone metal ear shell super good sound quality.features.this is a very stylish bluetooth halter headset with intimate english tips and a variety of voice prompts to familiarize you with the operation..it has a precise structure and a good sound. easy to use multi-function three-button button for easy operation..the shoulders are designed to release both ears. highly elastic silicone material, can be worn at will arc, and the rear-mounted design will keep your run