New Ships within 24 hours (usually) Profile must be read Since it's unopened, I don't know the detailed specifications or how it feels to use. The following is the product description from the sales site: ↓↓↓ [Industry's First Miniaturized AirTag + Pet Collar Set] Compact size to reduce the burden on pets. Prevents loss of cats and dogs. Cat and small dog collar (Provides pet loss prevention and location information, similar to Apple's AirTag product) 48mAh button battery is replaceable. Apple "Find My" function, no monthly fee required. Brand: HOAD MEAT Color: Red 16 length x 2 width cm With bell [Miniaturized Tracker with Pet Collar Integrated Set] Collar: Neck size 18cm - 36cm Battery life: Approximately 2-3 months (using 48mAh CR1225 lithium battery) Included: Main unit battery + spare CR1225 battery (for replacement) Included: 1.1cm diameter gold bell [Product Overview] A set product that integrates a tracker and a collar. Real-time tracking of pet location, effectively preventing loss. [Tracker Features] Size: Weight 2.7g, height 1.25cm, diameter 1.7cm (industry's smallest class) Function: Equipped with the same location tracking function as Apple AirTag. iOS MFI certified (ID: 6976839670025) & Findmay label, fully compatible with the "Find My" function of iPhone/iPad/Mac (no app required) Stable connection, protects privacy Like AirTag, uses nearby Apple devices to pinpoint location 1: Not compatible with Android 2: Pairing is not possible without enabling Bluetooth 3: Pairing requires an iPhone logged into an Apple ID 4: This product only supports one Apple ID. If using with a different ID, you must unregister the product from the first paired Apple ID. 5: First, remove the white insulation sheet (just pull it out) 6: If not connected within 3 minutes, the device will automatically turn off due to power outage protection. In that case, remove the battery, wait 15 seconds, then reinsert the battery and restart the device before connecting. 7: Open the "Find My" app and click "Add Item". Then search for "Other Supported Items" [Do NOT select "Add AirTag"] 92445