Hign-concerned Chemical: None Frame Replace Available: no Language: English Model Number: E12 ROM: 128 RAM: 128 Connection: Bluetooth-compatible Function: calling,music,Camera Certification: none Origin: Mainland China Brand Name: SINDE Product Name: smart glasses Operation System: Other Function: music Display Type: OLED Product Type: smart glasses Function 2: voice assistant Function 1: calling Camera: < 3MP