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Brand: huapaiworld Model: HPI9 Function: Photograph, social entertainment, Bluetooth call, waterproof, smart reminder, heart rate monitoring, sleep monitoring, remote control Selfie, step Color Classification: Black, Red, Orange, Green, Brown Belt, Black Belt, Steel Belt Black, Steel Belt Silver Wireless distance: 5m (including) -10m (inclusive) Applicable object: Apple iOS platform, Android platform Compatible platform: iOS, Android Intelligent type: other intelligence