Product dimensions :46.5 x 31 x 7.2mm
Product net weight:10g each one
Dust and water resistance
IP67 rating. The device has been tested and certified to be resistant to splash, water, and dust in the presence of specific laboratory conditions with the classification IP67 ingress protection based on IEC 60529:1989+A1:1999+A2:2013. Please note that the test conditions of water resistance include: submersion in static freshwater up to a depth of 1 meters, up to 30 minutes, with a temperature delta between the water and product being 5K or less. Such water resistance features only pertain to specific conditions tested in a laboratory environment, which do not correspond to the normal conditions of use by consumers. Therefore, ingress protection is not assured if the product is subjected to environments beyond the test conditions. We recommend that you do not test it by yourself. Not advised for beach or pool use. Ingress protection might deteriorate from daily wear and tear, physical damage, and/or disassembly needed in case of repair. Avoid changing the battery or operating the physical button when the product is exposed to moisture. Please carefully refer to the user's manual for other safety instructions. The warranty will not cover the liquid damage caused in the environments beyond the IP67 test condition.

Connectivity
Bluetooth: BLE v5.4 for proximity finding;NFC tap for Lost mode (Apple Find My only)
Speaker
Built-in piezoelectric buzzer
Battery type
Removable CR2032 button cell
Sensor
Accelerometer
Compatibility
Google Android Find Hub: Supports phones and tablets running Android 9 or later via Google Find Hub.Apple Find My: Supports iPhone and iPad running iOS 14.5 or iPadOS 14.5 or later via Apple Find My.
Package contents
Xiaomi Tag 4pcs 
User manual