Features 1. The True Unlimited Bluetooth Headphone Smartwatch+Headphone Charging Case brings you a more portable lifestyle, offering a brand new experience of combining smartwatches and headphones. Smart watch portable charging case, the earphones can be stored in the watch to start charging and provide two charges for the earphones. 2. 1 meter waterproof, solving daily waterproof problems. Wearable for washing hands, face, swimming, waterproof and dustproof, easy to handle. 3. The full circle touch screen adopts a 1.32-inch high-definition full circle screen, providing a clear visual experience on the wrist. It inherits the classic crown metal body and features a high elastic silicone strap. 4. Built in waterproof mini TWS earphones, compact and comfortable to ear. 5. Multiple dials for you to choose from, paired with various styles to meet Nissan's different occasions, allowing you to change freely and stand out every moment. Product parameters Bluetooth version: Mobile Bluetooth 5.0, data storage Bluetooth 4.0; Charging compartment battery capacity: 240mAh polymer lithium battery Headphone battery capacity: 25mAh polymer lithium battery Charging box function: The main body can charge the ear for 2-3 cycles Standby time: 8-12 days Music time: 3.5 hours Charging method: magnetic suction charging Charging time: 1-2 hours Main chip: 8762D TWS: Chip 8926B2 (Zhongke Lanxun) Heart rate chip: Tianyi Hexin 3300 Screen size; 1.32 inches Screen resolution: 360 * 360 Dust and waterproof: IP67 Memory: 192KB RAM+1024KB ROM+128MB UI Flash Vibration: Real time vibration reminder Main shell materials: glass lenses+zinc aluminum alloy Product colors: black, silver Compatible system: Android 4.4 and above; IOS 8.0 and above APP software: FitCloudPro Features: Bluetooth calling, full touch, heart rate, shake to take a photo, call reminder/reject, information storage, multiple sports modes, weather Main functions include multiple languages, information reminders, alarm clocks, finding wristbands, health monitoring, exercise recording (pedometer, calories, mileage, time, week, date) Information reminder SMS, QQ, WeChat, Skype, Facebook, Twitter, WhatsApp, Line, Viber Specification Product size: 5.47 x 4.62 x1.3 cm Watch strap size: Length: 2.2 x 12 cm Short: 2.2 x 9 cm Net weight of watch: 57.0g Weight: 150g Outer box size: 51 x 33 x 16.5 cm Packaging list: Charging cable, instruction manual, complete machine Package Include: 1x 2-in-1 Smartwatch With TWS Bluetooth Earphones