Product DescriptionSpecification: Type: Bluetooth FinderMaterial: PlasticBluetooth Version: Bluetooth 4.0 low power consumptionFrequency: 2400-2483MHzRemind: Buzzer more than 85DBUse Range: Within 25 meters / 82ftSupported device: for iOS 7.0 system or above; for Android 4.3 system or above with Bluetooth 4.0 or above:Battery Type: 1*CR2032 (included)Working Time: About 45 daysStandby Time: About half yearWorking Voltage: 3VCurrent Rating: 0.079mAPower Rating: 0.237W Material: Plastic Package weight: 0.075 kg Product size (L x W x H): 3.70 x 3.70 x 0.60 cm / 1.46 x 1.46 x 0.24 inches Package size (L x W x H): 10.00 x 10.00 x 3.00 cm / 3.94 x 3.94 x 1.18 inches Package Contents: 1 x Bluetooth Anti-lost Tracker