Description: 1. Anti-lost alarm and phone two-way search: To find your device with one click, click the "call device" icon on the Tuya APP to trigger the smart finder alarm. You can also easily find your phone by double-clicking the button on the smart finder to trigger the ringtone 2. Disconnection alarm When the smart viewfinder is far away from a safe distance, the phone receives a disconnection alarm 3. Connect memory and location record When the Tuya APP is disconnected, the last location will be recorded to facilitate the recovery of the lost device 4. Equipment Sharing You can share the device with your family and they can find the device by ringing 5. Multi-device management A mobile phone can be paired with 10-20 devices without affecting each other 6.80DB loud volume] The sound is up to 80db, and the working diameter is up to 10-15 meters. Specifications: Working current: 3.7mA Standby power consumption: 15uA Volume: 50-80dB (adjustable in mobile phone) Connection method: Bluetooth 4.2 (no support for WIFI) Waterproof: not waterproof Battery: CR2032 Use distance: indoor