| Display: | TFT |
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| Usage: | Detection, Communication |
| Material: | Ceramic |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
| Operation | The ring has no touch and no buttons; App initiates movement and function tests |
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Suppliers with verified business licenses
Audited Supplier 
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