Smart device with high-precision GPS, IP68 waterproof rating, and a 100dB volume. - Size: 85.6mm x 54mm x 18mm - Waterproof Rating: IP68 - Volume: 100dB - Battery: High-capacity battery - GPS Function: High-precision GPS - Weight: 15g - Compatible OS: iOS compatible - Setup: Easy setup - Function: Find by sounding Includes battery: Yes Material: Acrylonitrile Butadiene Styrene (ABS) Number of batteries: 1 Lithium Ion battery (included) Product dimensions: 2 length x 2 width x 2 thickness mm Compatible devices: iOS, iPhone 【High-Performance Loss Prevention Tag!】Reasons to choose the DHRJ Finder Card!! (1) No charging required! No battery replacement required! All products are fully charged and can be used for 3 years!! (2) Ultra-thin card tag!! The thickness of a regular card, only 2.6mm!! (3) IP68 level waterproof and dustproof! Washable with water! (4) Equipped with a 100dB loud buzzer! (5) With LED lamp! You can clearly see if it has been pressed correctly! Easy to find even at night! (6) MFi & Telec certified! Compatible with Apple "Find My"! (7) Durable and unbreakable specifications! 【Can be used for up to 10 years!】 Adopts a long-lasting battery and power-saving technology. 【High-Quality Positioning Accuracy】 The accuracy of location information boasts the highest level in the industry. Compatible with Docomo's LTE communication area, it combines three positioning methods: GPS satellites, Wi-Fi, and base stations, and also incorporates the error correction system SBAS and an acceleration sensor. 【With LED light and buzzer】 This airtag card is equipped with a 100dB buzzer and LED light, providing effective support when searching. Even in noisy environments or dark places, the powerful sound and bright light will help you quickly find lost items. Push notifications are sent when it moves away from you, and if you leave it behind, you can get it back immediately. You can exclude locations where notifications are not needed, and if you lose it, turning on "Lost Mode" will lock the card, and the contact information of the owner will be displayed to the person who found it. It has been opened once for photography, but it is new and unused, so please rest assured. Also, as it is a product purchased personally, there is no warranty. Operation has not been confirmed. Thank you for viewing.