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Product Name: Smart Call Bracelet, Product Model: K13 Color: Classic Black, Rose Gold, Product Material: Plastic Electroplating Screen: 1.14 color screen, touch mode: single touch Resolution: 135 * 240 Call duration: 4.5H, working duration: 60H, charging duration: 2H Standby time: 7 days or more, battery: 100Amh Matching system: Apple Android and all smartphones Bluetooth version: Bluetooth 5.2, charging method: clamp charging Product language: Chinese and English Functional applications: call/listen to music/step count/distance measurement/calories/heart rate/blood pressure/blood oxygen/sleep management/exercise/time display/alarm reminder Product certification: ROHS, CTA certification, quality inspection report Base specifications: 249 * 24 * 14.5mm, 18g, headphone specifications: 48.5 * 21 * 14.5mm, 12g Packaging specifications: 127 * 96 * 33mm Weight product+packaging 55g, product 30g (bottom tray 18g, earphones 12g) Complete set: charging cable, earphones+earcaps, strap base, instruction manual, certificate of conformity K13 English Details Introduction: