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Screen size: 1.44 inches Communication Function: Supported Product Weight: 44g Interface: USB 2.0 Connection method: Bluetooth Additional functions: step counting, call, smart reminder, remote control selfie, health monitoring, information push, motion tracking, sleep analysis Material: Plastic Type of communication: plug-in card not enabled Packing List: Bracelet manual Wireless distance: 5m (inclusive)-10m (inclusive) Appearance size: 11.4*36.4 * 42mm AI intelligent voice: the AI voice function is not supported. Battery capacity: 100 mA Waterproof grade: life waterproof Operation mode: touch button Charging Method: USB Direct plug Wristband material: Silicone Battery life: less than 7 days Function: smart reminder Mixed Batch supported or not: Supported Applicable platforms: fully compatible