【Compatible with Google Device Only】Designed to work seamlessly with Google Device app, offering efficient tracking for Android users. 【Eco-Friendly Design】Crafted from environmentally friendly materials, including plant straw, contributing to sustainability efforts. 【Compact and Lightweight】With dimensions of 36x36x7.5mm and weighing only 7.65g, it's easy to attach to various items without adding bulk. 【Long-Range Tracking】Utilizes Bluetooth-compatible 5.2 wireless technology for a transmission distance of up to 40 meters in open visual range. 【Loud Alert】Features a built-in 75 dB buzzer (at 10cm) to help locate misplaced items quickly and easily. 【Versatile Use】Ideal for tracking pets, personal belongings, and valuable items to prevent loss. Specifications: Dimensions: 36x36x7.5mm / 1.41x1.41x0.29 inches Weight: 7.65g / 0.26 oz Battery: CR2032 Working Voltage: DC 3.0V Working Current: Standby ≤5μA, Max Sound 80mA Wireless: Bluetooth-compatible 5.2 Transmission Range: 40m (open visual distance) Buzzer: Built-in 75 dB (at 10cm) Operating Temperature: -5 to 45℃ (23 to 113℉) Working Humidity: 95% (no condensation) Material: Eco-friendly plant straw Note: This product supports for Google Device app, does not support for iOS system, does not support Chinese Android phones, and only supports overseas Google system users.