Features:Support phone call, FM radio, MP3 player, etc.Make the covert communication possible when it is inconvenient to expose earpieces.Compatible with ISO phones, Android phones, tablets, kindle-, eReaders, and any portable devices with a standard 3.5 mm jack.Microphone with 1-Button- call for clear calls and smartphone control.To avoid possible noise interference when using this device, Keep away from electrical equipment including personal computer consoles, speakers, televisions, refrigerators, etc. Package Includes:1X Single EarpieceOr Earpiece with Cable setOr Earpiece with BT Cable set Specifications:Material: Silicone+Metal Size: approx 10x6x6mm/0.4x0.2x0.2inStyle: single ear/coil set /BT coil set (optional) note:Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item.BAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact usDuring the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we"ll make you feel satisfied.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it