Features: Pet bluetooth-compatible locator, wallet tracking device, locator, phone finder, precise positioning. Single button search, easy to operate. Small in size and portable, not taking up space. 75dB alarm sound, allows you easy to hear. With hanging hole, it can attach to bags, backpacks, or keychains. Specifications: Material: ABS+Electronics Color: white, black, yellow, pink, blue Size: approx.2x2cm/0.78x0.78inch Battery: build-in CR2032(replaceable) Working voltages: DC3V Version: BLE5.1 Loud: build-in ≥75dB(10cm away) Working temperature: -5~45℃ (23-113℉) Working humidity: ≤ 95%(not condensing) Package Includes: 1Pc Bluetooth-compatible Locator note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.