   Features:The band is made from top quality material, it is wear-resisting and durable to wear.It is a wearable device that link to your smartphone through Bluetooth.LED flash and the device will mildly vibrate whenever a target is nearby.Can be used with any compatible smart phone that has the related application installed.Can be removable, small and portable to carry.Descriptions:The device connects to a smartphone via Bluetooth low energy.The band can be adjusted to fit most people.Mutifunction, can be used as bracelet.Wonderful gift for you or your friends.Specifications:Power: by lithium coin cell battery CR2032(included)Material: plastic, clothDiameter: 4-7cmColor: blue&whitePackage included:1 x Bluetooth Bracelet wristband1 x User ManualNotes:1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!    
Trustpilot
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