IOS / Android UniversalBluetooth communication: Bluetooth 4.0Sending distance: 10mBattery life: about 6 monthsSending frequency: 2.4GHz-2.4835GHzBattery Model: GR2032
Product size: 48mm * 30mm * 10mm
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Refund in case of loss of the parcel
Refund for non-delivery
Refund if the item is damaged