4-pack Mini Round Hidden GPS Trackers Small Portable Outdoor Smart Key Finder Locator Smart Bluetooth Tracking Device Anti-Loss Alarm Device for Key, Wallet, Pet Cat Dog, Luggage, Vehicle Quality ABS material superior and durable in use. The size is 1.57 * 1.57 * 0.23 inches. [Wide Use]: Just press the button, quickly find lost items. The GPS tracker is designed to be used anywhere, such as key, pet, handbag, cars, vehicles, people, trunk, etc. Small in size and easy to carry. [Two-way search function]: You can connect to the mobile phone's Bluetooth function to achieve two-way anti-loss. When the anti-loss device exceeds the set Bluetooth range, the mobile phone and the anti-loss device will alarm simultaneously. The service distance is about 20-30 meters, can be connected to 4 sets of loss prevention devices. [Multifunction]: In the connected state, you can remotely control the mobile phone's selfie via the anti-loss device's button and find the lost location at the same time. You can check the map location when the anti-loss device is disconnected from your phone, so that the items can be tracked. [Quality Service]: Premium service is what we strive for. If you have any questions or suggestions regarding our products, please do not hesitate to contact us and we will get back to you within 24 hours. Set of 4 Mini Cat Dog Fashion Cute Round Hidden Small Portable Trackers. Colors: Black, Blue, Pink, White Specifications: - Weight: 8g. - Size: 1.57 * 1.57 * 0.23 inches. - Battery: CR2032 button battery. - Wireless distance: 20-30 meters. - Material: Made of ABS, which is both reliable and durable. Features: 1. Replaceable battery and low power consumption, powered by CR2032 button cell. 2. The sound is 80-90dB, which is quite far and has a long range. 3. Intelligent tracking equipment can provide stable and long-distance tracking. 4. The anti-loss device button can remotely control the mobile phone's selfie. 5. Enter the location interface, you can view lost records and lost history, you can quickly find lost items. 6. Provide an undisturbed function, which can be turned off for a certain period of time to avoid interruptions during work and other important times. 7. Suitable for various items such as keys, dog, cat, handbags, vehicles, people, trunk, backpacks, etc. Noted: 1. A maximum of 4 devices can be connected. 2. The GPS tracker is powered by a CR2032 battery. 3. You need to download the iFindU app on your Android or iOS device. 4. Supports all phones with iOS 9.0, Android 9.0 and later systems. About us: If you find a product with malfunction or quality problems within 30 days, please contact us in time for return and exchange. Pack: Mini GPS tracker * 4